Wellspring Mask Ogerpon ex / Fan Rotom

What Wellspring Mask Ogerpon ex / Fan Rotom looks like when you open the box

Across the 58 lists we counted, this deck runs 19 to 27 Pokémon, 24 to 33 Trainers and 6 to 14 Energy. Its attacks are paid for in Water.

On results pages and on stream you will see this deck written « tera-box ». That word does not point at any one card in the list, so we did not turn it into a name. The name you are reading comes from the deck's main attackers — the cards you will actually put on the table, and the ones your opponent will learn to fear.

Look at the Energy: 6 to 14 out of 60, when half the 126 decks we track run 11 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. Noctowl 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: 24 to 33 cards out of 60, against a median of 31 across the 126 decks we track. Inside that, 5 to 16 Supporters, and the rule there is strict — one a turn, even if you are holding three. The 12 to 19 Items you can play all of in the same turn. It also brings up to 4 Stadiums, and 88 of the 126 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

Wellspring Mask Ogerpon ex and Fan Rotom give this deck its name. Here is what is written on them.

Wellspring Mask Ogerpon ex is in all 58 lists, 2 copies of it.

Fan Rotom is in all 58 lists, 2 copies of it. Its Ability is called Fan Call, and here is what is printed on it, word for word: « Once during your first turn, you may search your deck for up to 3 {C} Pokémon with 100 HP or less, reveal them, and put them into your hand. Then, shuffle your deck. You can't use more than 1 Fan Call Ability during your turn. »

How Wellspring Mask Ogerpon ex / Fan Rotom actually wins

Wellspring Mask Ogerpon ex attacks with Torrential Pump for 100. It needs 3 Energy, 1 Water and 2 Colorless attached, and it has 210 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: "You may shuffle 3 Energy attached to this Pokémon into your deck. If you do, this attack also does 120 damage to 1 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)"

The cost of Torrential Pump 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. Except you are not on your own. Crispin, which the list runs 3 of, looks at the top of your deck and attaches the Energy it finds there. Teal Mask Ogerpon ex does the same job. That is where this deck buys its turns, and it is the first thing to look for in your opening hand.

Good news on mobility: pulling Wellspring Mask Ogerpon 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.

Wellspring Mask Ogerpon ex carries the "ex" suffix, and your opponent takes 2 Prize cards instead of one when Wellspring Mask Ogerpon ex falls. They need 6 to win: 3 well-placed knockouts on that card beat you, where it would take 6 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 Wellspring Mask Ogerpon exBasic	210	Torrential Pump	100		Lightning ×2	1
Close Fan RotomBasic	70	Assault Landing	70		Lightning ×2	1
Close NoctowlStage 1	100	Speed Wing	60		Lightning ×2	1

The core: the 9 cards every list runs

These 9 cards appear in all 58 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: 14 Trainers, 7 Pokémon, 1 Energy. Trainers outweigh everything else put together, which is the mark of a deck that goes and fetches its cards rather than waiting to draw them.

9 of those 9 cards do not sit at the same count from list to list: Noctowl (3 to 4), Fan Rotom (1 to 2) and Wellspring Mask Ogerpon ex (1 to 3), plus 6 more. Add those spreads up and you get 17 copies the 58 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
3–4	Close Noctowl	SCR 115	Pokémon	leaves
1–2	Close Fan Rotom	SCR 118	Pokémon	leaves
1–3	Close Wellspring Mask Ogerpon ex	TWM 64	Pokémon	leaves
2–4	Close Poké Pad	POR 81	Trainer	stays
1–4	Close Area Zero Underdepths	SCR 131	Trainer	leaves
2–4	Close Crispin	SCR 133	Trainer	leaves
1–3	Close Boss's Orders	MEG 114	Trainer	stays
1–2	Close Night Stretcher	ASC 196	Trainer	leaves
1–4	Water Energy	MEE 3	Energy	stays

The 109 cards that change from list to list

109 cards fight over the 38 slots that are left: 11 above three lists in four, 77 below one in four, and the percentage on each row says how many players took it.

The most agreed on first: Hoothoot at 97 %, Ultra Ball at 97 % and Lillie's Clefairy ex at 93 %, plus 8 more above 75 %. Add those to the core and you have the common build.

The dividing line runs through Iron Leaves ex, at 50 %: 29 of 58 players took it, 29 put something else there. The ones who run it bring 1 copy. Right at the bottom of the table, Flareon ex (10 lists out of 58) and Leafeon ex (10 lists out of 58).

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
97 %56/58	Close Hoothoot	2–4	SCR 114	Pokémon
97 %56/58	Close Ultra Ball	1–4	MEG 131	Trainer
93 %54/58	Close Lillie's Clefairy ex	1–2	JTG 56	Pokémon
93 %54/58	Grass Energy	1–6	MEE 1	Energy
93 %54/58	Psychic Energy	1–3	MEE 5	Energy
86 %50/58	Close Fezandipiti ex	1	ASC 142	Pokémon
86 %50/58	Close Latias ex	1–2	SSP 76	Pokémon
84 %49/58	Close Sparkling Crystal	1	SCR 142	Trainer
81 %47/58	Close Tera Orb	1–3	SSP 189	Trainer
81 %47/58	Close Lillie's Determination	1–4	MEG 119	Trainer
79 %46/58	Close Energy Switch	1–3	MEG 115	Trainer
74 %43/58	Close Teal Mask Ogerpon ex	1–3	TWM 25	Pokémon
71 %41/58	Close Meowth ex	1–3	POR 62	Pokémon
71 %41/58	Close Energy Search	1–2	POR 72	Trainer
69 %40/58	Lightning Energy	1–3	MEE 4	Energy
67 %39/58	Close Switch	1	MEG 130	Trainer
64 %37/58	Close Terapagos ex	1	SCR 128	Pokémon
62 %36/58	Close Mega Kangaskhan ex	1–4	MEG 104	Pokémon
59 %34/58	Close Special Red Card	1	CRI 82	Trainer
57 %33/58	Close Chien-Pao	1	SSP 56	Pokémon
50 %29/58	Close Iron Leaves ex	1	TEF 25	Pokémon
50 %29/58	Close Buddy-Buddy Poffin	1–4	TEF 144	Trainer
48 %28/58	Close Pikachu ex	1–2	SSP 57	Pokémon
48 %28/58	Metal Energy	1–2	MEE 8	Energy
43 %25/58	Close Bloodmoon Ursaluna ex	1	TWM 141	Pokémon
40 %23/58	Close Brock's Scouting	1	JTG 146	Trainer
40 %23/58	Close Judge	1	POR 76	Trainer
34 %20/58	Close Cyrano	1–3	SSP 170	Trainer
34 %20/58	Fire Energy	1–3	MEE 2	Energy
29 %17/58	Close Glass Trumpet	1–2	SCR 135	Trainer
28 %16/58	Close Air Balloon	1–2	ASC 181	Trainer
26 %15/58	Fighting Energy	1–3	MEE 6	Energy
17 %10/58	Close Flareon ex	1	PRE 14	Pokémon
17 %10/58	Close Leafeon ex	1	PRE 6	Pokémon
16 %9/58	Close Eevee ex	2–3	PRE 75	Pokémon
16 %9/58	Close Black Belt's Training	1	JTG 143	Trainer
14 %8/58	Close Eevee	1–3	SSP 143	Pokémon
14 %8/58	Darkness Energy	2–4	MEE 15	Energy
12 %7/58	Close Rare Candy	1–2	MEG 125	Trainer
12 %7/58	Close Energy Retrieval	1	SVI 171	Trainer
10 %6/58	Close Moltres	1	PFL 14	Pokémon
10 %6/58	Close Xerosic's Machinations	1–2	SFA 64	Trainer
9 %5/58	Close Banette	2	JTG 60	Pokémon
9 %5/58	Close Espeon ex	2	PRE 34	Pokémon
9 %5/58	Close Shuppet	2	PBL 33	Pokémon
9 %5/58	Close Raging Bolt ex	1	TEF 123	Pokémon
9 %5/58	Close Dawn	1–4	PFL 87	Trainer
9 %5/58	Close Unfair Stamp	1	TWM 165	Trainer
9 %5/58	Close Telepathic Psychic Energy	1	POR 88	Energy
7 %4/58	Close Cornerstone Mask Ogerpon ex	1	TWM 112	Pokémon
7 %4/58	Close Hoothoot	1	PRE 77	Pokémon
7 %4/58	Close Koraidon ex	1	ASC 121	Pokémon
7 %4/58	Close Mega Froslass ex	1	ASC 47	Pokémon
7 %4/58	Close Snorunt	1–2	ASC 46	Pokémon
5 %3/58	Close Munkidori	1–3	TWM 95	Pokémon
5 %3/58	Close Pikipek	2–3	PBL 66	Pokémon
5 %3/58	Close Dusknoir	1–2	PRE 37	Pokémon
5 %3/58	Close Duskull	2	PRE 35	Pokémon
5 %3/58	Close Sylveon ex	1–2	SSP 86	Pokémon
5 %3/58	Close Toucannon	2	PBL 68	Pokémon
5 %3/58	Close Dusclops	1	PRE 36	Pokémon
5 %3/58	Close Iron Crown ex	1	TEF 81	Pokémon
5 %3/58	Close Trumbeak	1	PBL 67	Pokémon
5 %3/58	Close Briar	1	SCR 132	Trainer
5 %3/58	Close Hilda	1–2	WHT 84	Trainer
5 %3/58	Close Light Ball	1	ASC 191	Trainer
5 %3/58	Close Prime Catcher	1	TEF 157	Trainer
5 %3/58	Close Redeemable Ticket	1	JTG 156	Trainer
3 %2/58	Close Hoothoot	3–4	TEF 126	Pokémon
3 %2/58	Close Chi-Yu	1	TWM 39	Pokémon
3 %2/58	Close Mew ex	1	30C 66	Pokémon
3 %2/58	Close Paldean Tauros	1	SSP 18	Pokémon
3 %2/58	Close Psyduck	1	ASC 39	Pokémon
3 %2/58	Close Team Rocket's Petrel	1–2	DRI 176	Trainer
3 %2/58	Close Wally's Compassion	1–2	MEG 132	Trainer
3 %2/58	Close Jamming Tower	1	TWM 153	Trainer
3 %2/58	Close Lillie's Pearl	1	JTG 151	Trainer
3 %2/58	Close Prism Energy	1	ASC 216	Energy
2 %1/58	Close Drakloak	4	TWM 129	Pokémon
2 %1/58	Close Dreepy	4	TWM 128	Pokémon
2 %1/58	Close Staryu	3	POR 20	Pokémon
2 %1/58	Close Alolan Exeggutor ex	2	SSP 133	Pokémon
2 %1/58	Close Eevee	2	TWM 135	Pokémon
2 %1/58	Close Exeggcute	2	MEG 4	Pokémon
2 %1/58	Close Froslass	2	TWM 53	Pokémon
2 %1/58	Close Glaceon ex	2	PRE 26	Pokémon
2 %1/58	Close Mega Starmie ex	2	POR 21	Pokémon
2 %1/58	Close Buneary	1	PFL 83	Pokémon
2 %1/58	Close Dragapult ex	1	TWM 130	Pokémon
2 %1/58	Close Eevee	1	SFA 50	Pokémon
2 %1/58	Close Flutter Mane	1	TEF 78	Pokémon
2 %1/58	Close Jirachi ex	1	30C 102	Pokémon
2 %1/58	Close Jolteon ex	1	PRE 30	Pokémon
2 %1/58	Close Mega Lopunny ex	1	PFL 84	Pokémon
2 %1/58	Close Passimian	1	SSP 111	Pokémon
2 %1/58	Close Pecharunt ex	1	SFA 39	Pokémon
2 %1/58	Close Raging Bolt	1	SCR 111	Pokémon
2 %1/58	Close Vaporeon ex	1	PRE 23	Pokémon
2 %1/58	Close Yveltal	1	MEG 88	Pokémon
2 %1/58	Close Team Rocket's Venture Bomb	2	DRI 179	Trainer
2 %1/58	Close Battle Cage	1	PFL 85	Trainer
2 %1/58	Close Energy Recycler	1	DRI 164	Trainer
2 %1/58	Close Gravity Mountain	1	SSP 177	Trainer
2 %1/58	Close Hero's Cape	1	TEF 152	Trainer
2 %1/58	Close Kieran	1	TWM 154	Trainer
2 %1/58	Close N's Plan	1	BLK 83	Trainer
2 %1/58	Close Nighttime Mine	1	ASC 197	Trainer
2 %1/58	Close Salvatore	1	TEF 160	Trainer
2 %1/58	Close Team Rocket's Watchtower	1	DRI 180	Trainer

The most common Wellspring Mask Ogerpon ex / Fan Rotom list, all 60 cards

Here they are in full, ready to build. 22 slots come from the core, the cards all 58 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 27 more cards to reach 60. The whole thing comes to 21 Pokémon, 30 Trainers and 9 Energy.

One thing to know before you build it: the 58 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.

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 Noctowl SCR 115
2 Fan Rotom SCR 118
2 Wellspring Mask Ogerpon ex TWM 64
3 Hoothoot SCR 114
1 Lillie's Clefairy ex JTG 56
1 Fezandipiti ex ASC 142
1 Latias ex SSP 76
1 Teal Mask Ogerpon ex TWM 25
1 Meowth ex POR 62
1 Terapagos ex SCR 128
1 Mega Kangaskhan ex MEG 104
1 Chien-Pao SSP 56
1 Iron Leaves ex TEF 25
1 Pikachu ex SSP 57
1 Bloodmoon Ursaluna ex TWM 141

Trainer: 30
4 Poké Pad POR 81
3 Area Zero Underdepths SCR 131
3 Crispin SCR 133
2 Boss's Orders MEG 114
2 Night Stretcher ASC 196
4 Ultra Ball MEG 131
1 Sparkling Crystal SCR 142
2 Tera Orb SSP 189
1 Lillie's Determination MEG 119
2 Energy Switch MEG 115
1 Energy Search POR 72
1 Switch MEG 130
1 Special Red Card CRI 82
1 Buddy-Buddy Poffin TEF 144
1 Brock's Scouting JTG 146
1 Judge POR 76

Energy: 9
1 Water Energy MEE 3
4 Grass Energy MEE 1
2 Psychic Energy MEE 5
1 Lightning Energy MEE 4
1 Metal Energy MEE 8

Total Cards: 60

How many different cards Wellspring Mask Ogerpon ex / Fan Rotom needs, and how long it will last

You need 118 different cards to cover every version of this deck, 9 of which nobody argues about. The rest is where lists differ from one another, and that is where you have room to choose.

All 58 lists bring an ACE SPEC, and that is where they part ways: 49 took Sparkling Crystal, 5 took Unfair Stamp and 3 took Prime Catcher. The flex table shows you all 4. 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 Sparkling Crystal and watch what the others do with theirs before you switch.

Then there is time. 6 of the 9 core cards carry the letter H, the one that goes at the next rotation: Noctowl, Fan Rotom, Wellspring Mask Ogerpon ex and Area Zero Underdepths, plus 2 more. The core table marks every one of them. In copies, that is 15 of the 22 slots the core fills. Which day it lands, we do not know yet.

What Wellspring Mask Ogerpon ex / Fan Rotom struggles against

The attackers in this deck are Weak to Lightning, so they take DOUBLE damage from that type. 9 of the 126 decks we track attack in exactly that type.

Concretely, here is what is waiting for you: Mega Manectric ex / Eelektrik, Eelektrik and Iono's Bellibolt ex, plus 6 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 9 decks out of the 126 we track. The other 117 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 13 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.