Isle of Vesuva is a common Plane — Dominaria card from Planechase Anthology Planes (OPCA), collector number 39. Current market price: $2.43, TCGplayer market prices via Scryfall.
Whenever a nontoken creature enters, its controller creates a token that's a copy of that creature. Whenever chaos ensues, destroy target creature and all other creatures with the same name as that creature.