Izzet Steam Maze is a common Plane — Ravnica card from Planechase Anthology Planes (OPCA), collector number 40. Current market price: $9.71, TCGplayer market prices via Scryfall.
Whenever a player casts an instant or sorcery spell, that player copies it. The player may choose new targets for the copy. Whenever chaos ensues, instant and sorcery spells you cast this turn cost {3} less to cast.