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.
Other cards from Sword & Shield
Quick Ball (Holofoil)
Ordinary Rod (Holofoil)
Metal Saucer (Holofoil)
Air Balloon (Holofoil)
Zamazenta V (Holofoil)
Zacian V (Holofoil)
Team Yell Grunt (Holofoil)
Professor's Research (Professor Magnolia) (Holofoil)
Marnie (Holofoil)
Bede (Holofoil)
Snorlax VMAX (Holofoil)
Stonjourner VMAX (Holofoil)
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Shellder (swsh1-40 Reverse Holofoil) is a Basic Water-type Pokémon from the Sword & Shield set printed as a reverse holofoil common. Its attack Water Splash costs one Water and one Colorless and does 20 damage, with a coin flip to do 20 more damage on heads. It has a Lightning weakness and a one Colorless retreat cost, giving it straightforward trading and mobility in matches.
Catalog pricing data as of 17 Apr 2026, 19:04