How to beat Registeel ex

Registeel ex has 1 version in the 2026–27 Standard format, with up to 230 HP as a Metal Pokémon. Here's the maths for Knocking it Out — worked out from every Standard-legal card.

Game plan

1. Hit its Weakness. Registeel ex is weak to Fire, so those attacks do double damage. 45 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. 44 single-Prize Pokémon can take it out in one attack, so you trade 1 Prize for 2.
3. Avoid Grass attacks. Registeel ex resists them, so they do less damage.
4. Plan for its big hit. Its strongest printed attack is Protecting Steel for 140 (4 Energy). 329 Standard cards have enough HP to survive one hit — before any Weakness, + or × effects.
5. Watch the Retreat Cost. It costs 3 Energy to retreat. If it gets stuck in the Active Spot, that's your chance.

One-hit Knock Outs using Weakness

These Fire attacks do at least 230 after Weakness. Fastest (fewest Energy) first.

One-hit Knock Outs without Weakness

Attacks with a printed 230+ damage (after Resistance).

Best Prize trades

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

Pokémon that survive its biggest attack

These can take a printed 140 from Protecting Steel and stay in play (Weakness included). Single-Prize Pokémon first.

Every Standard Registeel 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 Registeel cards in Standard · how to knock out a 230 HP Pokémon · Fire vs Metal · beating big Pokémon ex · more counter guides

Questions people ask

What is Registeel ex weak to?

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

How much HP does Registeel ex have?

Up to 230 HP in Standard.

How many Prize cards does Registeel ex give up?

2 — it's a Pokémon ex.

What can one-hit KO Registeel ex?

85 Standard cards can, going by printed damage. The fastest: Ceruledge's Infernal Slash (1 Energy, 440 damage); Centiskorch's Billowing Heat Wave (1 Energy, 260 damage); Palafin ex's Giga Impact (1 Energy, 250 damage).

What is Registeel ex's strongest attack?

Protecting Steel, which prints 140 damage for 4 Energy.

What does Registeel ex resist?

Grass — those attacks do less damage to it.