How to beat Serperior ex
Serperior ex has 1 version in the 2026–27 Standard format, with up to 320 HP as a Grass Pokémon. Here's the maths for Knocking it Out — worked out from every Standard-legal card.
- HP
- 320
- Weakness
- Fire
- Resistance
- None
- Prizes
- 2
- One-hit KOs
- 28
- Fastest KO
- 1 Energy
Game plan
- Hit its Weakness. Serperior ex is weak to Fire, so those attacks do double damage. 27 Standard cards can Knock it Out in one hit that way — the fastest needs just 1 Energy.
- Win the Prize trade. It gives up 2 Prize cards when Knocked Out. 13 single-Prize Pokémon can take it out in one attack, so you trade 1 Prize for 2.
- Plan for its big hit. Its strongest printed attack is Command the Grass for 150 (4 Energy). 302 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 Fire attacks do at least 320 after Weakness. Fastest (fewest Energy) first.
| Pokémon | Type | Attack | Damage | Damage to Serperior ex | HP | Prizes |
|---|---|---|---|---|---|---|
| Ceruledge Phantasmal Flames | Fire | Infernal Slash R | 220 | 440 | 140 | 1 |
| Blaziken ex Journey Together | Fire | Smolder-sault RC | 200 | 400 | 320 | 2 |
| Centiskorch Temporal Forces | Fire | Charring Breath RR | 180 | 360 | 140 | 1 |
| Chandelure White Flare | Fire | Burn It All Up RR | 180 | 360 | 150 | 1 |
| Mega Emboar ex Ascended Heroes | Fire | Crimson Blast RRC | 320 | 640 | 380 | 3 |
| Mega Pyroar ex Chaos Rising | Fire | Fiery Big Bang RRC | 290- | 580 | 340 | 3 |
| Ceruledge ex Prismatic Evolutions | Fire | Raging Amethyst RPM | 280 | 560 | 270 | 2 |
| Cinderace ex Ascended Heroes | Fire | Flare Strike RCC | 280 | 560 | 320 | 2 |
| Flareon ex Prismatic Evolutions | Fire | Carnelian RWL | 280 | 560 | 270 | 2 |
| Gouging Fire ex Temporal Forces | Fire | Blaze Blitz RRC | 260 | 520 | 230 | 2 |
| Darmanitan Twilight Masquerade | Fire | Inferno Onrush RRR | 210 | 420 | 140 | 1 |
| Infernape Twilight Masquerade | Fire | Scorching Fire RRC | 200 | 400 | 140 | 1 |
One-hit Knock Outs without Weakness
Attacks with a printed 320+ damage.
| Pokémon | Type | Attack | Damage | Damage to Serperior ex | HP | Prizes |
|---|---|---|---|---|---|---|
| Mega Dragonite ex Ascended Heroes | Dragon | Ryuno Glide WLL | 330 | 330 | 370 | 3 |
Best Prize trades
Single-Prize Pokémon that Knock Out Serperior ex in one attack — you give up 1 Prize, they give up 2.
| Pokémon | Type | Attack | Damage | Damage to Serperior ex | HP | Prizes |
|---|---|---|---|---|---|---|
| Ceruledge Phantasmal Flames | Fire | Infernal Slash R | 220 | 440 | 140 | 1 |
| Centiskorch Temporal Forces | Fire | Charring Breath RR | 180 | 360 | 140 | 1 |
| Chandelure White Flare | Fire | Burn It All Up RR | 180 | 360 | 150 | 1 |
| Darmanitan Twilight Masquerade | Fire | Inferno Onrush RRR | 210 | 420 | 140 | 1 |
| Infernape Twilight Masquerade | Fire | Scorching Fire RRC | 200 | 400 | 140 | 1 |
| Ceruledge Surging Sparks | Fire | Black Blaze Slash RRC | 160 | 320 | 140 | 1 |
| Ethan's Typhlosion Destined Rivals | Fire | Steam Artillery RRC | 160 | 320 | 170 | 1 |
| Pyroar Prismatic Evolutions | Fire | Flame Tackle RRC | 160 | 320 | 120 | 1 |
Pokémon that survive its biggest attack
These can take a printed 150 from Command the Grass 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 |
| Steelix Mega Evolution | Metal | Stage 1 | 200 | Fire ×2 | 4 | 1 |
| Copperajah Journey Together | Metal | Stage 1 | 190 | Fire ×2 | 4 | 1 |
| Aggron Twilight Masquerade | Metal | Stage 2 | 180 | Fire ×2 | 3 | 1 |
| Alolan Golem Journey Together | Lightning | Stage 2 | 180 | Fighting ×2 | 4 | 1 |
| Archaludon Phantasmal Flames | Metal | Stage 1 | 180 | Fire ×2 | 2 | 1 |
| Archaludon Prismatic Evolutions | Metal | Stage 1 | 180 | Fire ×2 | 2 | 1 |
Every Standard Serperior ex card
| Card | Set | HP | Stage | Attacks (cost · damage) | Retreat | Weakness |
|---|---|---|---|---|---|---|
| Serperior ex 3/86 Ability: Regal Cheer | Black Bolt I | 320 | Stage 2 | Command the Grass GCCC 150 | 2 | Fire ×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 Serperior cards in Standard · how to knock out a 320 HP Pokémon · Fire vs Grass · beating big Pokémon ex · more counter guides
Questions people ask
What is Serperior ex weak to?
Serperior ex is weak to Fire, so those attacks do double damage (×2).
How much HP does Serperior ex have?
Up to 320 HP in Standard.
How many Prize cards does Serperior ex give up?
2 — it's a Pokémon ex.
What can one-hit KO Serperior ex?
28 Standard cards can, going by printed damage. The fastest: Ceruledge's Infernal Slash (1 Energy, 440 damage); Blaziken ex's Smolder-sault (2 Energy, 400 damage); Centiskorch's Charring Breath (2 Energy, 360 damage).
What is Serperior ex's strongest attack?
Command the Grass, which prints 150 damage for 4 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.