
Description, catalog fields, rules text, and how it plays—in one place.
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It swims facing backward by opening and closing its two-piece shell. It is surprisingly fast.
Abilities, attacks, weakness & resistance
Flip a coin. If heads, this attack does 20 more damage.
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Shellder (swsh1-40) is a Water-type Basic Pokémon card from the Sword & Shield expansion with common rarity. Its single attack, Water Splash, does 20 damage and does 20 more damage if you flip a heads. The card has a Lightning weakness and a one Colorless retreat cost, giving it straightforward defensive and mobility traits.
Catalog pricing data as of 23 Apr 2026, 02:19