The Bridge of Khazad-Dûm

The Bridge of Khazad-Dûm enters the battlefield tapped.
{2}{t}: Add {b}{r} equal to your devotion to each color. Roll a d6. 1-4: Target opponent creates a 2/2 Goblin Archer creature token with reach. 5: Target opponent creates a 5/5 Orc Captain creature token with haste. 6: Target opponent creates a 10/10 legendary Balrog creature token that can only be blocked by legendary creatures and has "when this creature enters the battlefield, destroy target land."