Creature — Orc 2/3, 4R (5)
Rare
Whenever Orcish Squatters attacks and isn't blocked, you may gain control of target land defending player controls for as long as you control Orcish Squatters. If you do, Orcish Squatters assigns no combat damage this turn.
Illus. Richard Kane Ferguson

10/4/2004: The ability triggers on the declaration of blockers if no blockers are declared for it.
10/1/2008: If you lose control of Orcish Squatters before its ability resolves, you won't gain control of the targeted land at all.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander