Leviathan [The Dark] IDW Comics 2012 Inferno Project enters the battlefield

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

you may mill three cards instead

Set: Conspiracy Type: Sorcery Rarity: Common Cost: {3}{R} Wrap in Flames deals 1 damage to each of up to three target creatures

Set: Dungeons & Dragons: Adventures in the Forgotten Realms Type: Artifact — Equipment Rarity: Uncommon Cost: {U} Invoke Duplicity — Equipped creature gets +1/+1 and has "Whenever this creature deals combat damage to a player

Set: March of the Machine Promos Type: Legendary Artifact Rarity: Rare Cost: {1}{G} If one or more +1/+1 counters would be put on an artifact or creature you control

Leviathan [The Dark] IDW Comics 2012 Inferno Project enters the battlefieldSet: 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.)