Mire Jungle
Land-Swamp Forest (Rare)

(Tap: Add B or G to your mana pool.)

Mire Jungle enters the battlefield tapped unless you control four or more Black permanents.

BB, Tap, Sacrifice Mire Jungle: Put a -1/-1 counter on target creature.

2G, Tap: Target green creature gets +2/+2 until end of turn.

Ron Critchlow