Imskir Iron-Eater 431 (Modern Horizons 3)

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) When Imskir enters, you draw X cards and you lose X life, where X is half the number of artifacts you control, rounded down. {3}{R}, Sacrifice an artifact: Imskir deals damage equal to the sacrificed artifact's mana value to any target.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50