Signature Slam is a uncommon Instant card from Magic: The Gathering (Modern Horizons 3, MH3). Current market price: $0.25.
Uncommon
Modern Horizons 3 (MH3)
{2}{G}
Mana Value
3
Colors
G
Card Text
Put a +1/+1 counter on target creature you control, then each modified creature you control deals damage equal to its power to target creature you don't control. (Equipment, Auras you control, and counters are modifications.)
