Leviathan [The Dark] IDW Comics 2012 and great engines drawn by

and great engines drawn by beasts crawled across the field

you may mill three cards instead

Set: The Brothers' War Type: Creature — Centaur Soldier Rarity: Uncommon Cost: {4}{G} Whenever Gaea's Courser attacks

Inferno Project enters the battlefield with X +1/+1 counters on it

Leviathan [The Dark] IDW Comics 2012 and great engines drawn bySet: The Dark Type: Creature Leviathan Rarity: Rare Cost: {5}{U}{U}{U}{U} Trample Leviathan enters the battlefield tapped and doesn't untap during your untap step. At the beginning of your upkeep, you may sacrifice two Islands. If you do, untap Leviathan. Leviathan can't attack unless you sacrifice two Islands. (This cost is paid as attackers are declared.)