Den of the Bugbear

If you control two or more other lands, Den of the Bugbear enters tapped.

{t}: Add {r}.
{3}{r}: Until end of turn, Den of the Bugbear becomes a 3/2 red Goblin creature with "Whenever this creature attacks, create a 1/1 red Goblin creature token that's tapped and attacking." It's still a land.