Darksteel Myr [Scars of Mirrodin] BT11-073 Set: Outlaws of Thunder Junction:

Set: Outlaws of Thunder Junction: The Big Score Type: Legendary Artifact — Equipment Rarity: Mythic Cost: {1} Whenever equipped creature deals combat damage

where X is the number of other creatures on the battlefield

you may put it onto the battlefield with a manifestation counter on it

Set: War of the Spark Prerelease Promos Type: Sorcery Rarity: Rare Cost: {2}{U}{U}{B} Enter the God-Eternals deals 4 damage to target creature and you gain life equal to the damage dealt this way

Set: Iconic Masters Type: Legendary Creature — Praetor Rarity: Mythic Cost: {6}{G}{G} Trample

Darksteel Myr [Scars of Mirrodin] BT11-073 Set: Outlaws of Thunder Junction:Set: Scars of Mirrodin Type: Artifact Creature Myr Rarity: Uncommon Cost: {3} Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)