RA05-EN128 * Slifer the Sky Dragon * Ultra Rare * Rarity Collection 5 MP24-EN308 each player takes 500 damage

each player takes 500 damage

Seidhr of the Generaider Bosses" once per turn

If the effect activation of a monster you control is negated (except during the Damage Step): You can Special Summon this card from your hand

At the start of your Main Phase 1

RA05-EN128 * Slifer the Sky Dragon * Ultra Rare * Rarity Collection 5 MP24-EN308 each player takes 500 damageRequires 3 Tributes to Normal Summon (cannot be Normal Set). This card's Normal Summon cannot be negated. When Normal Summoned, cards and effects cannot be activated. Once per turn, during the End Phase, if this card was Special Summoned: Send it to the GY. Gains 1000 ATK DEF for each card in your hand. If a monster(s) is Normal or Special Summoned to your opponent's field in Attack Position: That monster(s) loses 2000 ATK, then if its ATK has been