Dampen Thought - Modern Masters - 39

Instant — Arcane

Mana Cost: {1}{U}

Target player mills four cards.
Splice onto Arcane {1}{U} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Common · Modern Masters · #39 (MMA)

Illustrated by Arnie Swekel