Ertai's Scorn

Decks with (n) copies:

100 (4) 80 (3) 83 (2) 34 (1)

Instant

Oracle text:

This spell costs {U} less to cast if an opponent cast two or more spells this turn.
Counter target spell.

"You're not so special, Karn. Anything that has been assembled can be disassembled."

Collection:

Dominaria United

Rarity:

Uncommon

1.5 LSV