Sludge Crawler

8: This creature gets +5/+5 and gains trample until end of turn.

(T: Add B or R.) This land enters tapped unless you control two or more basic lands.

Rally — Whenever this creature or another Ally you control enters, tap target creature an opponent controls.

Flying, vigilance

Devoid (This card has no color.) Touch of the Void deals 3 damage to any target. If a creature dealt damage this way would die this turn, exile it instead.

Devoid (This card has no color.) Choose one or both — • Return target spell or creature to its owner's hand. • Brutal Expulsion deals 2 damage to target creature or planeswalker. If that creature or planeswalker would die this turn, exile it instead.

Flying At the beginning of your upkeep, each opponent loses 1 life and you gain 1 life.

This land enters tapped. When this land enters, target creature gets +1/+1 and gains vigilance until end of turn. T: Add W.