How to beat Mega Delphox ex

Mega Delphox ex has 1 version in the 2026–27 Standard format, with up to 350 HP as a Fire Pokémon. Here's the maths for Knocking it Out — worked out from every Standard-legal card.

HP: 350

Weakness: Water

Resistance: None

Prizes: 3

One-hit KOs: 12

Fastest KO: 1 Energy

Game plan

Hit its Weakness. Mega Delphox ex is weak to Water, so those attacks do double damage. 12 Standard cards can Knock it Out in one hit that way — the fastest needs just 1 Energy.
Win the Prize trade. It gives up 3 Prize cards when Knocked Out. 5 single-Prize Pokémon can take it out in one attack, so you trade 1 Prize for 3.
Plan for its big hit. Its strongest printed attack is Eerie Glow for 200 (3 Energy). 156 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 Water attacks do at least 350 after Weakness. Fastest (fewest Energy) first.

Pokémon	Type	Attack	Damage	Damage to Mega Delphox ex	HP	Prizes
Palafin ex Prismatic Evolutions	Water	Giga Impact W	250	500	340	2
Vaporeon ex Prismatic Evolutions	Water	Aquamarine RWL	280	560	280	2
Clawitzer Mega Evolution	Water	Aqua Launcher WWW	210	420	130	1
Mega Starmie ex Perfect Order	Water	Nebula Beam CCC	210	420	330	3
Iron Bundle Surging Sparks	Water	Gusting Collision WWC	200-	400	100	1
Mega Abomasnow ex Mega Evolution	Water	Frost Barrier WWW	200	400	350	3
Mega Feraligatr ex Ascended Heroes	Water	Mortal Crunch WWC	200+	400	370	3
Crawdaunt Twilight Masquerade	Water	Rampaging Hammer WWC	180	360	130	1
Black Kyurem ex Surging Sparks	Water	Black Frost WWCC	250	500	230	2
Mamoswine Phantasmal Flames	Water	Blizzard Edge WCCC	200	400	180	1
Wailord ex Pitch Black	Water	Falling Down WWWWW	270	540	380	2
Crabominable Stellar Crown	Water	Haymaker WCCCC	250	500	160	1

One-hit Knock Outs without Weakness

Attacks with a printed 350+ damage.

None in Standard right now.

Best Prize trades

Single-Prize Pokémon that Knock Out Mega Delphox ex in one attack — you give up 1 Prize, they give up 3.

Pokémon	Type	Attack	Damage	Damage to Mega Delphox ex	HP	Prizes
Clawitzer Mega Evolution	Water	Aqua Launcher WWW	210	420	130	1
Iron Bundle Surging Sparks	Water	Gusting Collision WWC	200-	400	100	1
Crawdaunt Twilight Masquerade	Water	Rampaging Hammer WWC	180	360	130	1
Mamoswine Phantasmal Flames	Water	Blizzard Edge WCCC	200	400	180	1
Crabominable Stellar Crown	Water	Haymaker WCCCC	250	500	160	1

Pokémon that survive its biggest attack

These can take a printed 200 from Eerie Glow 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
Wailord ex Pitch Black	Water	Stage 1	380	Lightning ×2	4	2
Mamoswine ex Journey Together	Fighting	Stage 2	340	Grass ×2	4	2
Palafin ex Prismatic Evolutions	Water	Stage 1	340	Lightning ×2	2	2
Slaking ex Surging Sparks	Colorless	Stage 2	340	Fighting ×2	4	2
Tyranitar ex Prismatic Evolutions	Darkness	Stage 2	340	Grass ×2	3	2
Cynthia's Garchomp ex Ascended Heroes	Fighting	Stage 2	330	Grass ×2	0	2
Hydreigon ex White Flare	Darkness	Stage 2	330	Grass ×2	3	2

Every Standard Mega Delphox ex card

Card	Set	HP	Stage	Attacks (cost · damage)	Retreat	Weakness
Mega Delphox ex 8/84	Pitch Black J	350	Stage 2	Trick Portal R — Eerie Glow RCC 200	2	Water ×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).

Questions people ask

What is Mega Delphox ex weak to?

Mega Delphox ex is weak to Water, so those attacks do double damage (×2).

How much HP does Mega Delphox ex have?

Up to 350 HP in Standard.

How many Prize cards does Mega Delphox ex give up?

3 — it's a Mega Evolution Pokémon ex.

What can one-hit KO Mega Delphox ex?

12 Standard cards can, going by printed damage. The fastest: Palafin ex's Giga Impact (1 Energy, 500 damage); Vaporeon ex's Aquamarine (3 Energy, 560 damage); Clawitzer's Aqua Launcher (3 Energy, 420 damage).

What is Mega Delphox ex's strongest attack?

Eerie Glow, which prints 200 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.

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