Ephemerate (Japanese) [Strixhaven: Mystical Archive] G-30 Foil-Stamped Signature Art Card replaces

Foil-Stamped Signature Art Card replaces Art Card in 10% of Set Boosters

No evidence

any time you could activate a mana ability

Set: Mystery Booster Playtest Cards Type: Legendary Creature — Sliver Eldrazi Rarity: Rare Cost: {C}{W}{U}{B}{R}{G} Eldrazi you control are Slivers in addition to their other types

Ephemerate (Japanese) [Strixhaven: Mystical Archive] G-30 Foil-Stamped Signature Art Card replacesSet: Strixhaven: Mystical Archive Type: Instant Rarity: Rare Cost: {W} Exile target creature you control, then return it to the battlefield under its owner's control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)