Mega Froslass ex / Dudunsparce deck: the core, the flex slots, and what beats it

What Mega Froslass ex / Dudunsparce looks like when you open the box

Across the 27 lists we counted, this deck runs 13 to 23 Pokémon, 29 to 41 Trainers and 5 to 10 Energy. Its attacks are paid for in Water.

On results pages and on stream you will see it written « mega-froslass-dudunsparce ». Every card named in that label turns up in the tables below, which is what makes it a fair name for the deck.

Look at the Energy: 5 to 10 out of 60, when half the 97 decks we track run 10 or more. This one is lean. It lives on cheap attacks and leans on Trainers to find the right Energy at the right moment rather than stockpiling it.

It sets up fast. Dudunsparce is a Stage 1 Pokémon: a Basic, one evolution on top, and you are attacking. Two cards instead of three. You lose fewer turns building, and you rebuild much more easily when an early knockout lands on you.

Look at the Trainers: 29 to 41 cards out of 60, against a median of 31 across the 97 decks we track. Inside that, 9 to 18 Supporters, and the rule there is strict — one a turn, even if you are holding three. The 10 to 24 Items you can play all of in the same turn. It also brings up to 3 Stadiums, and 91 of the 97 decks we track bring that many or more. Only one Stadium sits on the table at a time: the one you play sends the one already there to the discard pile.

What Tools and Stadiums do — the two Trainer families we skipped here — and why the Energy count says so much: how to read a deck list.

What the cards in this deck's name actually do

Mega Froslass ex and Dudunsparce give this deck its name. Here is what is written on them.

Mega Froslass ex is in all 27 lists, 3 copies of it.

Dudunsparce is in all 27 lists, 2 copies of it. Its Ability is called Run Away Draw, and here is what is printed on it, word for word: « Once during your turn, you may draw 3 cards. If you drew any cards in this way, shuffle this Pokémon and all attached cards into your deck. »

How Mega Froslass ex / Dudunsparce actually wins

Mega Froslass ex attacks with Absolute Snow for 150. It needs 3 Energy, 1 Water and 2 Colorless attached, and it has 310 HP. And the number is not everything the card says. There is one more line printed under the attack, and it is the one everybody skips: "Your opponent's Active Pokémon is now Asleep."

The cost of Absolute Snow decides your first few turns. You only get to attach one Energy a turn, and that attack asks for 3. On your own attachments alone, your first real swing lands on turn 3. We have not found anything in this list that attaches Energy faster than that, so plan on holding out for 2 turns before you swing. Those turns still get played: you fill your Bench, you build your lines, and you keep something back to rebuild with when your attacker falls.

Energy is not your only clock. Dunsparce has to climb a step before it becomes Dudunsparce, and an evolution asleep at the bottom of your deck does you no good at all. The list has that covered. Hilda, which the list runs 2 of, goes into your deck for an evolution. Careful, though: only 22 of the 27 lists bring it, so it is a choice, and players are still arguing about it.

Good news on mobility: pulling Mega Froslass ex back to the Bench costs you 1 Energy attached to it, and that is all. Retreating does not cost you your turn, so you step back and swing anyway. That matters enormously the day your opponent lands something nasty on it.

Mega Froslass ex is a Mega Evolution ex, and that is the most expensive rule in the game: your opponent takes 3 Prize cards instead of one the turn it goes down. They need 6 to win the game, so 2 well-placed knockouts on that card beat you, where it would take 6 knockouts anywhere else on your Bench.

The attackers in the deck's core, with their best attack, its cost and their Weakness

Pokémon	HP	Attack	Damage	Cost	Weakness	Retreat
Close Mega Froslass exStage 1	310	Absolute Snow	150	Water + Colorless + Colorless	Metal ×2	1
Close DudunsparceStage 1	140	Land Crush	90	Colorless + Colorless + Colorless	Fighting ×2	3
Close SnoruntBasic	70	Chilly	10	Water	Metal ×2	1

The core: the 7 cards every list runs

These 7 cards appear in all 27 lists, without a single exception. That is 22 of the 60 slots. The other 38 are decided player by player.

Look at how those 22 slots break down: 10 Trainers, 8 Pokémon, 4 Energy. Nothing stands out in that split. What sets this deck apart is how thick its core is: 22 of the 60 slots are the same for everybody, when half the 97 decks we track fix 34 or more. This one leaves more room than most, and two players can build it very differently.

7 of those 7 cards do not sit at the same count from list to list: Mega Froslass ex (2 to 4), Snorunt (2 to 4) and Dudunsparce (2 to 4), plus 4 more. Add those spreads up and you get 16 copies the 27 lists do not agree on, inside the core itself.

What "3 to 4" means in the copies column, what the "TWM 130" code under each name is for, and why we count dozens of lists instead of one: how to read a deck list.

The cards present in every list counted, with the number of copies

Copies	Card	Printing	Kind	Rotation
2–4	Close Mega Froslass ex	ASC 47	Pokémon	stays
2–4	Close Snorunt	ASC 46	Pokémon	stays
2–4	Close Dudunsparce	TEF 129	Pokémon	leaves
2–4	Close Buddy-Buddy Poffin	TEF 144	Trainer	leaves
2–4	Close Poké Pad	POR 81	Trainer	stays
2–4	Close Boss's Orders	MEG 114	Trainer	stays
2–6	Water Energy	MEE 3	Energy	stays

The 78 cards that change from list to list

78 cards fight over the 38 slots that are left: 7 above three lists in four, 52 below one in four, and the percentage on each row says how many players took it.

The most agreed on first: Lillie's Determination at 96 %, Ultra Ball at 96 % and Night Stretcher at 85 %, plus 4 more above 75 %. Add those to the core and you have the common build.

The dividing line runs through Energy Search, at 52 %: 14 of 27 players took it, 13 put something else there. The ones who run it bring 1 copy. Right at the bottom of the table, Judge (6 lists out of 27) and Pokémon Catcher (5 lists out of 27).

Why a card at 45 % is not a bad card, and what order to buy all this in: how to read a deck list.

The cards some lists run and others don't, most common first

Lists running it	Card	Copies	Printing	Kind
96 %26/27	Close Lillie's Determination	2–4	MEG 119	Trainer
96 %26/27	Close Ultra Ball	2–4	MEG 131	Trainer
85 %23/27	Close Night Stretcher	1–3	ASC 196	Trainer
81 %22/27	Close Dunsparce	1–4	JTG 120	Pokémon
81 %22/27	Close Hilda	2–3	WHT 84	Trainer
78 %21/27	Close Wally's Compassion	1–4	MEG 132	Trainer
78 %21/27	Close Pokégear 3.0	1–4	SVI 186	Trainer
74 %20/27	Close Hero's Cape	1	TEF 152	Trainer
67 %18/27	Close Meowth ex	1	POR 62	Pokémon
59 %16/27	Close Team Rocket's Petrel	1–4	DRI 176	Trainer
56 %15/27	Close Budew	1	ASC 16	Pokémon
52 %14/27	Close Energy Search	1–3	POR 72	Trainer
48 %13/27	Close Dunsparce	1–4	TEF 128	Pokémon
48 %13/27	Close Rare Candy	2–4	MEG 125	Trainer
44 %12/27	Close Lucian	1–4	TWM 157	Trainer
44 %12/27	Fire Energy	2–3	MEE 2	Energy
41 %11/27	Close Chandelure	3	TWM 38	Pokémon
41 %11/27	Close Litwick	3	TWM 36	Pokémon
41 %11/27	Close Dudunsparce ex	1	JTG 121	Pokémon
41 %11/27	Close Special Red Card	1	CRI 82	Trainer
37 %10/27	Close Lampent	2	WHT 17	Pokémon
33 %9/27	Close Battle Cage	2	PFL 85	Trainer
33 %9/27	Close Salvatore	1–2	TEF 160	Trainer
30 %8/27	Close Fan Rotom	1–2	SCR 118	Pokémon
30 %8/27	Close Shaymin	1	DRI 10	Pokémon
26 %7/27	Close Surfing Beach	1	MEG 129	Trainer
22 %6/27	Close Judge	1–3	POR 76	Trainer
19 %5/27	Close Pokémon Catcher	1–4	POR 82	Trainer
19 %5/27	Close Crispin	1–3	SCR 133	Trainer
15 %4/27	Close Froslass	1–3	TWM 53	Pokémon
15 %4/27	Close Munkidori	2–3	TWM 95	Pokémon
15 %4/27	Close Air Balloon	1–2	ASC 181	Trainer
15 %4/27	Close Festival Grounds	2	TWM 149	Trainer
15 %4/27	Darkness Energy	2–5	MEE 7	Energy
15 %4/27	Close Bubbly Water Energy	1–4	CRI 84	Energy
11 %3/27	Close Great Haul Net	2	CRI 78	Trainer
11 %3/27	Close Prism Tower	1–2	CRI 80	Trainer
11 %3/27	Close Mist Energy	2	TEF 161	Energy
7 %2/27	Close Duskull	4	PRE 35	Pokémon
7 %2/27	Close Tirtouga	4	BLK 22	Pokémon
7 %2/27	Close Dusknoir	3	PRE 37	Pokémon
7 %2/27	Close Dusclops	1–2	PRE 36	Pokémon
7 %2/27	Close Carracosta	1	BLK 23	Pokémon
7 %2/27	Close Antique Cover Fossil	4	SCR 129	Trainer
7 %2/27	Close Fossil Quarry	3	PBL 76	Trainer
7 %2/27	Close Dawn	2	PFL 87	Trainer
7 %2/27	Close Switch	2	MEG 130	Trainer
7 %2/27	Close Team Rocket's Factory	1–2	DRI 173	Trainer
7 %2/27	Close Colress's Tenacity	1	SFA 57	Trainer
7 %2/27	Close Energy Retrieval	1	SVI 171	Trainer
7 %2/27	Close Enriching Energy	1	SSP 191	Energy
7 %2/27	Close Legacy Energy	1	TWM 167	Energy
4 %1/27	Close Smoliv	3	DRI 21	Pokémon
4 %1/27	Close Arboliva ex	2	DRI 23	Pokémon
4 %1/27	Close Dolliv	2	DRI 22	Pokémon
4 %1/27	Close Mega Dragalge ex	2	CRI 65	Pokémon
4 %1/27	Close Skrelp	2	CRI 58	Pokémon
4 %1/27	Close Wellspring Mask Ogerpon ex	2	TWM 64	Pokémon
4 %1/27	Close Lampent	1	TWM 37	Pokémon
4 %1/27	Close Paldean Tauros	1	SSP 18	Pokémon
4 %1/27	Close Psyduck	1	ASC 39	Pokémon
4 %1/27	Close Team Rocket's Articuno	1	DRI 51	Pokémon
4 %1/27	Close Yveltal	1	MEG 88	Pokémon
4 %1/27	Close Crushing Hammer	4	POR 71	Trainer
4 %1/27	Close Dark Bell	3	PBL 75	Trainer
4 %1/27	Close Forest of Vitality	3	MEG 117	Trainer
4 %1/27	Close Risky Ruins	2	MEG 127	Trainer
4 %1/27	Close Xerosic's Machinations	2	SFA 64	Trainer
4 %1/27	Close Energy Recycler	1	DRI 164	Trainer
4 %1/27	Close Hand Trimmer	1	TEF 150	Trainer
4 %1/27	Close Handheld Fan	1	TWM 150	Trainer
4 %1/27	Close Precious Trolley	1	SSP 185	Trainer
4 %1/27	Close Rust Syndicate Grunt	1	PBL 81	Trainer
4 %1/27	Close Scoop Up Cyclone	1	TWM 162	Trainer
4 %1/27	Close Secret Box	1	TWM 163	Trainer
4 %1/27	Close Tool Scrapper	1	ASC 212	Trainer
4 %1/27	Grass Energy	6	MEE 1	Energy
4 %1/27	Psychic Energy	1	MEE 5	Energy

The most common Mega Froslass ex / Dudunsparce list, all 60 cards

Here they are in full, ready to build. 22 slots come from the core, the cards all 27 lists run. The remaining 38 come from the table just above, working down it: the cards the most players chose, each at its most common copy count, until the total lands on 60.

This list is nobody's list in particular. It takes, slot by slot, what the most people played, under the guardrails a judge would hold you to: never more than four copies of a card, and one ACE SPEC. Behind the core it took 22 more cards to reach 60. The whole thing comes to 21 Pokémon, 33 Trainers and 6 Energy.

One thing to know before you build it: the 27 lists we counted are all from players who came in the top twenty of their tournament. Nobody publishes the lists of the players who lost. So what you have in front of you is what the players finishing near the top bring most often.

The text under the table is the one the game expects: copy it, paste it into the deck manager, and the list builds itself.

There is no price total on this page. The readings we have are Cardmarket's, in euros, and the shop link further down sends you to TCGplayer, which quotes in dollars. Putting a euro figure next to a dollar shop would be one currency too many. The French and German pages carry the total.

Why we only read lists from players who came in the top twenty of their tournament, and what that changes about every percentage on this page: how to read a deck list.

Pokémon: 21
3 Mega Froslass ex ASC 47
3 Snorunt ASC 46
2 Dudunsparce TEF 129
1 Dunsparce JTG 120
1 Meowth ex POR 62
1 Budew ASC 16
1 Dunsparce TEF 128
3 Chandelure TWM 38
3 Litwick TWM 36
1 Dudunsparce ex JTG 121
2 Lampent WHT 17

Trainer: 33
4 Buddy-Buddy Poffin TEF 144
4 Poké Pad POR 81
2 Boss's Orders MEG 114
3 Lillie's Determination MEG 119
2 Ultra Ball MEG 131
2 Night Stretcher ASC 196
2 Hilda WHT 84
3 Wally's Compassion MEG 132
1 Pokégear 3.0 SVI 186
1 Hero's Cape TEF 152
2 Team Rocket's Petrel DRI 176
1 Energy Search POR 72
2 Rare Candy MEG 125
2 Lucian TWM 157
1 Special Red Card CRI 82
1 Salvatore TEF 160

Energy: 6
4 Water Energy MEE 3
2 Fire Energy MEE 2

Total Cards: 60

What Mega Froslass ex / Dudunsparce costs to build, and how long it will last

You need 85 different cards to cover every version of this deck, 7 of which nobody argues about. We do not have card prices, so we are not going to put a number on it.

All 27 lists bring an ACE SPEC, and that is where they part ways: 20 took Hero's Cape, 2 took Enriching Energy and 2 took Legacy Energy. The flex table shows you all 6. You are allowed ONE ACE SPEC card in your whole deck, so a single copy covers it whatever it costs. New to this deck? Take Hero's Cape and watch what the others do with theirs before you switch.

Then there is time. 2 of the 7 core cards carry the letter H, the one that goes at the next rotation: Dudunsparce and Buddy-Buddy Poffin. The core table marks every one of them. In copies, that is 6 of the 22 slots the core fills. Which day it lands, we do not know yet.

What Mega Froslass ex / Dudunsparce struggles against

The attackers in this deck are Weak to Metal and Fighting, so they take DOUBLE damage from those types. 22 of the 97 decks we track attack in exactly those types.

Concretely, here is what is waiting for you: Mega Excadrill ex, Slowking (Metagross) and Mega Lucario ex, plus 19 more decks. The table below takes them one at a time, and those are the lists you practise against first before an event.

This table counts one thing, Weakness, and that comes to 22 decks out of the 97 we track. The other 75 do not attack into yours, and this table says nothing about them. You will still run into them.

Going the other way, your attackers are Water, and 10 of the decks we track have an attacker Weak to one of those: Dragapult ex / Blaziken ex, Ethan's Typhlosion and Ceruledge ex, among others. That is you doubling, for once. Second half of the table.

Questions people ask

What is the Mega Froslass ex / Dudunsparce deck list?

There isn't one, so we built one for you: all 60 cards are written out further up this page. Across 27 tournament lists harvested between 16 August 2026 and 3 September 2026, 7 cards turn up in every single one, 22 slots out of 60. The remaining 38 change from player to player, with 78 different cards competing for them. Both tables are above.

How many lists is this counted on, and where do they come from?

27 lists, played across 26 different tournaments, harvested between 16 August 2026 and 3 September 2026 from play.limitlesstcg.com. All 27 were read card by card, and every card recognised.

Where do I start if I want to build Mega Froslass ex / Dudunsparce?

With the whole core: 7 cards, 22 slots. Inside it, buy the 10 Trainer slots and the 4 Energy first: they carry over into your next deck. Leave the 8 Pokémon slots for last. Only then work down the flex table and add the cards the most lists agree on, starting with Lillie's Determination at 96 % and Ultra Ball at 96 %.

What beats Mega Froslass ex / Dudunsparce?

Its attackers are Weak to Metal and Fighting, so they take double damage from an attacker of that type. 22 of the 97 decks we track play an attacker of that type: Mega Excadrill ex, Slowking, Mega Lucario ex and Mega Lucario ex / Hariyama, among others.

Will Mega Froslass ex / Dudunsparce survive the next rotation?

Not intact: 2 core cards out of 7 carry the letter H, starting with Dudunsparce and Buddy-Buddy Poffin.

Are a lot of people playing Mega Froslass ex / Dudunsparce?

We have read 27 lists of it, which puts it 59th of the 97 decks we track by lists read. The platform those tournaments run on counts 57 entries for it, 0.14 % of the field, across all its players. That figure is theirs.

These pages are about the same corner of the game. If you came away from this one still wondering about something, start with one of them.