How to beat Mismagius ex

Mismagius ex has 1 version in the 2026–27 Standard format, with up to 260 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. Mismagius ex is weak to Darkness, so those attacks do double damage. 34 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. 17 single-Prize Pokémon can take it out in one attack, so you trade 1 Prize for 2.
3. Avoid Fighting attacks. Mismagius ex resists them, so they do less damage.
4. Plan for its big hit. Its strongest printed attack is Hexa-Magic for 150 (2 Energy). 296 Standard cards have enough HP to survive one hit — before any Weakness, + or × effects.
5. Watch the Retreat Cost. It costs 1 Energy to retreat. If it gets stuck in the Active Spot, that's your chance.

One-hit Knock Outs using Weakness

These Darkness attacks do at least 260 after Weakness. Fastest (fewest Energy) first.

One-hit Knock Outs without Weakness

Attacks with a printed 260+ damage (after Resistance).

Best Prize trades

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

Pokémon that survive its biggest attack

These can take a printed 150 from Hexa-Magic and stay in play (Weakness included). Single-Prize Pokémon first.

Every Standard Mismagius 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 Mismagius cards in Standard · how to knock out a 260 HP Pokémon · Darkness vs Psychic · beating big Pokémon ex · more counter guides