How to beat Mamoswine ex

Mamoswine ex has 1 version in the 2026–27 Standard format, with up to 340 HP as a Fighting Pokémon. Here's the maths for Knocking it Out — worked out from every Standard-legal card.

HP: 340

Weakness: Grass

Resistance: None

Prizes: 2

One-hit KOs: 9

Fastest KO: 1 Energy

Game plan

Hit its Weakness. Mamoswine ex is weak to Grass, so those attacks do double damage. 9 Standard cards can Knock it Out in one hit that way — the fastest needs just 1 Energy.
Win the Prize trade. It gives up 2 Prize cards when Knocked Out. 3 single-Prize Pokémon can take it out in one attack, so you trade 1 Prize for 2.
Plan for its big hit. Its strongest printed attack is Rumbling March for 180+ (2 Energy). 171 Standard cards have enough HP to survive one hit — before any Weakness, + or × effects.
Watch the Retreat Cost. It costs 4 Energy to retreat. If it gets stuck in the Active Spot, that's your chance.

One-hit Knock Outs using Weakness

These Grass attacks do at least 340 after Weakness. Fastest (fewest Energy) first.

Pokémon	Type	Attack	Damage	Damage to Mamoswine ex	HP	Prizes
Decidueye Shrouded Fable	Grass	Power Shot G	170	340	150	1
Rillaboom Twilight Masquerade	Grass	Wood Hammer GG	180	360	180	1
Leafeon ex Prismatic Evolutions	Grass	Moss Agate GRW	230	460	270	2
Iron Leaves ex Prismatic Evolutions	Grass	Prism Edge GGC	180	360	220	2
Mega Heracross ex Phantasmal Flames	Grass	Mountain Ramming GGG	170	340	280	3
Decidueye ex Perfect Order	Grass	Crushing Arrow GCCC	240	480	320	2
Mega Venusaur ex Mega Evolution	Grass	Jungle Dump GGGG	240	480	380	3
Tapu Bulu Shrouded Fable	Grass	Wood Hammer GGCC	220	440	140	1
Yanmega ex Destined Rivals	Grass	Jet Cyclone GGGC	210	420	280	2

One-hit Knock Outs without Weakness

Attacks with a printed 340+ damage.

None in Standard right now.

Best Prize trades

Single-Prize Pokémon that Knock Out Mamoswine ex in one attack — you give up 1 Prize, they give up 2.

Pokémon	Type	Attack	Damage	Damage to Mamoswine ex	HP	Prizes
Decidueye Shrouded Fable	Grass	Power Shot G	170	340	150	1
Rillaboom Twilight Masquerade	Grass	Wood Hammer GG	180	360	180	1
Tapu Bulu Shrouded Fable	Grass	Wood Hammer GGCC	220	440	140	1

Two-hit plans

Not many cards one-shot it, so here are attacks that do at least 170 — two hits and it's gone.

Pokémon	Type	Attack	Damage	Damage to Mamoswine ex	HP	Prizes
Lurantis Destined Rivals	Grass	Petal Blade Dance G	130	260	120	1
Palafin ex Prismatic Evolutions	Water	Giga Impact W	250	250	340	2
Tinkaton Mega Evolution	Metal	Windup Swing M	240-	240	160	1
Ceruledge Phantasmal Flames	Fire	Infernal Slash R	220	220	140	1
Beedrill ex Chaos Rising	Grass	Rumbling Bees G	110×	220	310	2
Cradily Stellar Crown	Grass	Miasma Wind G	100×	200	150	1
Vivillon Surging Sparks	Grass	Cutting Wind G	90	180	120	1
Greninja ex Twilight Masquerade	Fighting	Shinobi Blade W	170	170	310	2
Shiftry Temporal Forces	Grass	Energy Loop CC	140	280	150	1
Lurantis ex Pitch Black	Grass	Leaf Guard GC	140	280	260	2

Pokémon that survive its biggest attack

These can take a printed 180+ from Rumbling March and stay in play (Weakness included). Single-Prize Pokémon first.

Pokémon	Type	Stage	HP	Weakness	Retreat	Prizes
Wailord Journey Together	Water	Stage 1	240	Lightning ×2	4	1
Copperajah Shrouded Fable	Metal	Stage 1	200	Fire ×2	4	1
Rhyperior Stellar Crown	Fighting	Stage 2	200	Grass ×2	4	1
Steelix Mega Evolution	Metal	Stage 1	200	Fire ×2	4	1
Copperajah Journey Together	Metal	Stage 1	190	Fire ×2	4	1
Tyranitar Journey Together	Darkness	Stage 2	190	Grass ×2	3	1
Hop's Corviknight Journey Together	Metal	Stage 2	170	Lightning ×2	2	1
Metagross Journey Together	Psychic	Stage 2	170	Darkness ×2	3	1

Every Standard Mamoswine ex card

Card	Set	HP	Stage	Attacks (cost · damage)	Retreat	Weakness
Mamoswine ex 79/159 Ability: Mammoth Hauler	Journey Together I	340	Stage 2	Rumbling March FF 180+	4	Grass ×2

Damage is the number printed on the card. Attacks marked + or × can do more, and Abilities, Tools and Stadiums can change the maths — always read the card. Energy letters: G Grass, R Fire, W Water, L Lightning, P Psychic, F Fighting, D Darkness, M Metal, N Dragon, C Colorless (any Energy).

Questions people ask

What is Mamoswine ex weak to?

Mamoswine ex is weak to Grass, so those attacks do double damage (×2).

How much HP does Mamoswine ex have?

Up to 340 HP in Standard.

How many Prize cards does Mamoswine ex give up?

2 — it's a Pokémon ex.

What can one-hit KO Mamoswine ex?

9 Standard cards can, going by printed damage. The fastest: Decidueye's Power Shot (1 Energy, 340 damage); Rillaboom's Wood Hammer (2 Energy, 360 damage); Leafeon ex's Moss Agate (3 Energy, 460 damage).

What is Mamoswine ex's strongest attack?

Rumbling March, which prints 180+ damage for 2 Energy.

Pully Play is an independent fan guide. It isn't run by The Pokémon Company. Format facts are checked against official announcements; always confirm card legality with the official rules before a tournament.

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