Gyarados (Red) 123 - Holofoil HeartGold SoulSilver - Holo Rare Attribute_Fire then target 1 Effect Monster

then target 1 Effect Monster your opponent controls

During battle between this attacking card and a Defense Position monster whose DEF is lower then the ATK of this card

roll a six-sided die

The effects of all face-up monsters on the field are negated while those monsters are face-up on the field (but their effects can still be activated)

Gyarados (Red) 123 - Holofoil HeartGold SoulSilver - Holo Rare Attribute_Fire then target 1 Effect MonsterRarityHolo Rare Card TypePokmon Hit Points130 HP FormStage 1 Evolves from Magikarp TypeWater Colorless Thrash (30+) If heads, this attack does 30 damage plus 20 more damage. If tails, Gyarados does 20 damage to itself. Water,Colorless,Colorless,Colorless Heavy Storm (70) Weakness Lightning 2 Resistance Fighting 20 Retreat CostColorless Retreat CostColorless Retreat CostColorless ArtistWataru Kawahara