How to beat Koraidon
Koraidon has 5 versions in the 2026–27 Standard format, with up to 140 HP as a Dragon Pokémon. Here's the maths for Knocking it Out — worked out from every Standard-legal card.
- HP
- 140
- Weakness
- Psychic
- Resistance
- None
- Prizes
- 1
- One-hit KOs
- 260
- Fastest KO
- 1 Energy
Game plan
- Hit its Weakness. Koraidon is weak to Psychic, so those attacks do double damage. 21 Standard cards can Knock it Out in one hit that way — the fastest needs just 2 Energy.
- Don't over-invest. It only gives up 1 Prize card, so avoid spending a big two-Prize attacker on it if a cheaper Pokémon can do the job.
- Plan for its big hit. Its strongest printed attack is Gaia Impact for 190 (3 Energy). 162 Standard cards have enough HP to survive one hit — before any Weakness, + or × effects.
- Watch the Retreat Cost. It costs 2 Energy to retreat. If it gets stuck in the Active Spot, that's your chance.
One-hit Knock Outs using Weakness
These Psychic attacks do at least 140 after Weakness. Fastest (fewest Energy) first.
| Pokémon | Type | Attack | Damage | Damage to Koraidon | HP | Prizes |
|---|---|---|---|---|---|---|
| Iron Boulder Prismatic Evolutions | Psychic | Adjusted Horn PC | 170 | 170 | 140 | 1 |
| Mesprit Surging Sparks | Psychic | Guardian Burst PP | 160 | 160 | 70 | 1 |
| Mismagius ex Phantasmal Flames | Psychic | Hexa-Magic PP | 150 | 150 | 260 | 2 |
| Gourgeist ex Chaos Rising | Psychic | Ghostly Touch PP | 140 | 140 | 270 | 2 |
| Mewtwo ex 30th Celebration | Psychic | Psychic Powers PPP | 230 | 230 | 230 | 2 |
| Steven's Claydol Destined Rivals | Psychic | Clay Blast PPC | 220 | 220 | 120 | 1 |
| Latias ex Surging Sparks | Psychic | Eon Blade PPC | 200 | 200 | 210 | 2 |
| Mega Floette ex Chaos Rising | Psychic | Eternity Bloom PPP | 200 | 200 | 250 | 3 |
| Mega Slowbro ex Pitch Black | Psychic | Shellnado Spin PPP | 180 | 180 | 330 | 3 |
| Alcremie ex Journey Together | Psychic | Whipped Shot PCC | 160 | 160 | 250 | 2 |
| Espeon ex Prismatic Evolutions | Psychic | Psych Out PCC | 160 | 160 | 270 | 2 |
| Palossand ex Surging Sparks | Psychic | Sand Tomb CCC | 160 | 160 | 280 | 2 |
One-hit Knock Outs without Weakness
Attacks with a printed 140+ damage.
| Pokémon | Type | Attack | Damage | Damage to Koraidon | HP | Prizes |
|---|---|---|---|---|---|---|
| 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 |
| Decidueye Shrouded Fable | Grass | Power Shot G | 170 | 170 | 150 | 1 |
| Greninja ex Twilight Masquerade | Fighting | Shinobi Blade W | 170 | 170 | 310 | 2 |
| Medicham Ascended Heroes | Fighting | Seventh Kick F | 150 | 150 | 120 | 1 |
| Diggersby Perfect Order | Colorless | Earthquake C | 140 | 140 | 150 | 1 |
| Slaking ex Surging Sparks | Colorless | Great Swing CC | 280 | 280 | 340 | 2 |
| Mega Lucario ex Ascended Heroes | Fighting | Mega Brave FF | 270 | 270 | 340 | 3 |
| Vikavolt Pitch Black | Lightning | Giga Railgun LL | 260 | 260 | 160 | 1 |
Pokémon that survive its biggest attack
These can take a printed 190 from Gaia Impact 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 |
| Hop's Corviknight Journey Together | Metal | Stage 2 | 170 | Lightning ×2 | 2 | 1 |
| Metagross Journey Together | Psychic | Stage 2 | 170 | Darkness ×2 | 3 | 1 |
| Wailord ex Pitch Black | Water | Stage 1 | 380 | Lightning ×2 | 4 | 2 |
| Mamoswine ex Journey Together | Fighting | Stage 2 | 340 | Grass ×2 | 4 | 2 |
Every Standard Koraidon card
| Card | Set | HP | Stage | Attacks (cost · damage) | Retreat | Weakness |
|---|---|---|---|---|---|---|
| Koraidon 119/162 | Temporal Forces H | 140 | Basic | Primordial Beatdown FC 30× Shred RFC 130 | 2 | None |
| Koraidon 86/128 | 30th Celebration J | 130 | Basic | Low Kick FF 50 Collision Course FFC 140 | 2 | Psychic ×2 |
| Koraidon 47/84 | Pitch Black J | 130 | Basic | Battle Claw F 30+ Gaia Impact FFC 190 | 2 | Psychic ×2 |
| Koraidon 116/191 | Surging Sparks H | 130 | Basic | Unrelenting Onslaught CC 30+ Hammer In FFC 110 | 2 | Psychic ×2 |
| Koraidon 90/142 | Stellar Crown H | 130 | Basic | Resolute Fang FF 50+ | 2 | Psychic ×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).
Related: all Koraidon cards in Standard · how to knock out a 140 HP Pokémon · beating big Pokémon ex · more counter guides
Questions people ask
What is Koraidon weak to?
Koraidon is weak to Psychic, so those attacks do double damage (×2).
How much HP does Koraidon have?
Up to 140 HP in Standard (140 on the Temporal Forces version, 130 on the 30th Celebration version, 130 on the Pitch Black version, 130 on the Surging Sparks version, 130 on the Stellar Crown version).
How many Prize cards does Koraidon give up?
1 — it's a regular Pokémon.
What can one-hit KO Koraidon?
260 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 Koraidon's strongest attack?
Gaia Impact, which prints 190 damage for 3 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.