Mechanically, they tend to have abilities that emphasize their love of consumption, gaining temporary stat buffs when you, their controller, makes some kind of sacrifice, from sacrificing forests to, yes, skipping your next turn
Sacrifice effects are ideal in black and red decks, so The Balrog, Durin's Bane should be easy to cast for very little mana -- and the payoff is enormous
Rootha is the star pupil of the Prismari College, and shes one of the latest in a long line of spellslinger commanders
Dozens of Pokemon and Trainer cards with special illustrations
Final Cry (2R57) offers direct wounding (saving a Fierce skirmish for some other poor chap), Durins Tower (6R77) limited pumps, Must Do Without Hope (2U68) lays on the burdens, and Fill With Fear (2U56) and Dark Fire (2U54) offer counters to two possible threats - Gandalf and directed Archery
You could have two Field of the Deads or copy your opponent's Gaea's Cradle