How to beat Mew ex

Mew ex has 1 version in the 2026–27 Standard format, with up to 160 HP as a Psychic Pokémon. Here's the maths for Knocking it Out — worked out from every Standard-legal card.

Game plan

1. Hit its Weakness. Mew ex is weak to Darkness, so those attacks do double damage. 71 Standard cards can Knock it Out in one hit that way — the fastest needs just 1 Energy.
2. Win the Prize trade. It gives up 2 Prize cards when Knocked Out. 117 single-Prize Pokémon can take it out in one attack, so you trade 1 Prize for 2.
3. Avoid Fighting attacks. Mew ex resists them, so they do less damage.
4. Plan for its big hit. Its strongest printed attack is Teleportation Burst for 30 (1 Energy). 1,759 Standard cards have enough HP to survive one hit — before any Weakness, + or × effects.
5. Watch the Retreat Cost. It retreats for free, so it can swap out easily — expect it to dodge.

One-hit Knock Outs using Weakness

These Darkness attacks do at least 160 after Weakness. Fastest (fewest Energy) first.

One-hit Knock Outs without Weakness

Attacks with a printed 160+ damage (after Resistance).

Best Prize trades

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

Pokémon that survive its biggest attack

These can take a printed 30 from Teleportation Burst and stay in play (Weakness included). Single-Prize Pokémon first.

Every Standard Mew ex card

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).

Related: all Mew cards in Standard · how to knock out a 160 HP Pokémon · Darkness vs Psychic · beating big Pokémon ex · more counter guides