Gyarados (33/147) (Cosmos Holo) [Sun & Moon: Burning Shadows] BT6-099 when another monster's effect is

when another monster's effect is activated: You can Tribute 1 monster

destroy that face-up monster

return the removed Fusion Monster to the field in face-up Attack Position

Set: Dimension of Chaos Card type: Pendulum/Effect Monster Rarity: Super Rare Attack: 2600 Defense: 1200 When you take effect damage (except during the Damage Step): You can Special Summon this card from your hand

Set: Ra Yellow Mega Pack Card type: Effect Monster Rarity: Common Attack: 1900 Defense: 600 Cannot be Normal Summoned or Set

Gyarados (33/147) (Cosmos Holo) [Sun & Moon: Burning Shadows] BT6-099 when another monster's effect isSet: Sun & Moon: Burning Shadows Type: Water Rarity: Holo Rare Retreat cost: Colorless,Colorless,Colorless,Colorless