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How to beat Yveltal ex

Yveltal ex has 1 version in the 2026–27 Standard format, with up to 210 HP as a Darkness Pokémon. Here's the maths for Knocking it Out — worked out from every Standard-legal card.

HP

210

Weakness

Lightning

Resistance

Fighting

Prizes

2

One-hit KOs

109

Fastest KO

1 Energy

Game plan

1. Hit its Weakness. Yveltal ex is weak to Lightning, so those attacks do double damage. 49 Standard cards can Knock it Out in one hit that way — the fastest needs just 2 Energy.
2. Win the Prize trade. It gives up 2 Prize cards when Knocked Out. 51 single-Prize Pokémon can take it out in one attack, so you trade 1 Prize for 2.
3. Avoid Fighting attacks. Yveltal ex resists them, so they do less damage.
4. Plan for its big hit. Its strongest printed attack is Dark Strike for 210 (3 Energy). 159 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 Lightning attacks do at least 210 after Weakness. Fastest (fewest Energy) first.

One-hit Knock Outs without Weakness

Attacks with a printed 210+ damage (after Resistance).

Best Prize trades

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

Pokémon that survive its biggest attack

These can take a printed 210 from Dark Strike and stay in play (Weakness included). Single-Prize Pokémon first.

Every Standard Yveltal 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 Yveltal cards in Standard · how to knock out a 210 HP Pokémon · Lightning vs Darkness · beating big Pokémon ex · more counter guides

Questions people ask

What is Yveltal ex weak to?

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

How much HP does Yveltal ex have?

Up to 210 HP in Standard.

How many Prize cards does Yveltal ex give up?

2 — it's a Pokémon ex.

What can one-hit KO Yveltal ex?

109 Standard cards can, going by printed damage. The fastest: Palafin ex's Giga Impact (1 Energy, 250 damage); Tinkaton's Windup Swing (1 Energy, 240 damage); Ceruledge's Infernal Slash (1 Energy, 220 damage).

What is Yveltal ex's strongest attack?

Dark Strike, which prints 210 damage for 3 Energy.

What does Yveltal ex resist?

Fighting — those attacks do less damage to it.