Gyarados (21/98) (Cosmos Holo) (Theme Deck Exclusive) [XY: Ancient Origins] DDBW During either player's turn: You

During either player's turn: You can Tribute this Synchro Summoned card

{1}: Mutavault becomes a 2/2 creature with all creature types until end of turn

but nothing has threatened humanity's existence like the murderous Alien scourge

Set: Foreign Black Border Type: Creature — Hydra Rarity: Rare Cost: {X}{R}{R} Rock Hydra enters the battlefield with X +1/+1 counters on it

can now mix monsters from both games to compete for supremacy over Tokyo with evolution cards

Gyarados (21/98) (Cosmos Holo) (Theme Deck Exclusive) [XY: Ancient Origins] DDBW During either player's turn: YouSet: XY: Ancient Origins Type: Water Rarity: Holo Rare Retreat cost: Colorless,Colorless,Colorless