Pokémon TCG: Best Greninja ex Deck Guide for 30th Celebration

The Pokémon TCG's 30th Celebration expansion just dropped a Greninja ex that's turning heads in Standard — and it's not just nostalgia talking. This new Water-type Stage 2 card brings…

September 25, 2026
2 min read

The Pokémon TCG’s 30th Celebration expansion just dropped a Greninja ex that’s turning heads in Standard — and it’s not just nostalgia talking. This new Water-type Stage 2 card brings a genuinely nasty attack that punishes boards already covered in damage counters, making it the fourth Greninja ex now legal in the format.

The star move here is Stealthy Slash, which deals 30 damage to any one of your opponent’s Pokémon for every damage counter already sitting on it. That means the real strategy isn’t just playing Greninja ex — it’s setting the table first. Pair it with Froslass and Munkidori to spread damage counters across the board using Froslass’s Freezing Shroud ability, which targets any Pokémon with an Ability. Once counters are stacked, use Surfing Beach to swap Greninja ex into the Active Spot and unleash a massive hit.

Pokémon TCG

This deck shines against Alakazam builds especially — since most Alakazam Pokémon carry Abilities, they’re easy prey for Froslass, and removing their Battle Cage Stadium leaves them exposed. The matchup gets trickier against Dragapult ex, though, since it has no Ability and is immune to Freezing Shroud, making it a much tougher target to wear down.

Pokémon TCG: Deck Snapshot

DetailInfo
CardGreninja ex (30th Celebration)
TypeWater, Stage 2
Key AttackStealthy Slash (30 dmg per damage counter)
Best PartnersFroslass, Munkidori, Surfing Beach
Strong AgainstAlakazam decks
Weak AgainstDragapult ex, rising Lightning decks

Why This Deck Works

The synergy between Froslass’s counter-spreading and Greninja ex’s scaling damage output creates a genuine win condition rather than relying on raw base power. It’s a deck that rewards patience — set up your counters first, then strike.

For more TCG deck guides and Pokémon meta breakdowns, check out our latest Pokémon TCG coverage and gaming strategy hub on TechnoSports.

FAQs

Q1: What makes the 30th Celebration Greninja ex different from other versions?

Its Stealthy Slash attack scales damage based on existing damage counters, making it a powerful finisher when paired with counter-spreading support like Froslass.

Q2: What’s the best counter to a Greninja ex deck?

Dragapult ex is a strong answer since it lacks an Ability and can’t be targeted by Froslass’s Freezing Shroud, along with emerging Lightning-type decks.


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