Infinite Impermanence [RA01-EN075] Quarter Century Secret Rare Beginning Observer this card is destroyed

this card is destroyed

If this card battles a DARK monster

this card gains 500 ATK

When this card attacks with an ATK that is higher than the DEF of your opponent''s Defense Position monster

or planeswalker an opponent controls

Infinite Impermanence [RA01-EN075] Quarter Century Secret Rare Beginning Observer this card is destroyedSet: Rarity Collection (25th Anniversary Edition) Card type: Normal Trap Rarity: Quarter Century Secret Rare Target 1 face up monster your opponent controls; negate its effects (until the end of this turn), then, if this card was Set before activation and is on the field at resolution, for the rest of this turn all other Spell Trap effects in this column are negated. If you control no cards, you can activate this card from your hand.