Ertai's Scorn | 48 | Dominaria United

Set: Dominaria United
Rarity: U
#: 48
Creature Type or Sub Type: Instant
Rules Text Contains: This spell costs U less to cast if an opponent cast two or more spells this turn.
Counter target spell.
Flavor: "You're not so special, Karn. Anything that has been assembled can be disassembled."