Biomancer's Familiar [Ravnica Allegiance Prerelease Promos] Magic 2011 Promos Set: Mirrodin Type: Legendary Artifact

Set: Mirrodin Type: Legendary Artifact Rare Cost: {2} If you would flip a coin

Sacrifice Powder Keg: Destroy each artifact and creature with converted mana cost equal to the number of fuse counters on Powder Keg

Sacrifice Aura of Silence: Destroy target artifact or enchantment

You lose 3 life

Serendib Djinn deals 3 damage to you

Biomancer's Familiar [Ravnica Allegiance Prerelease Promos] Magic 2011 Promos Set: Mirrodin Type: Legendary ArtifactSet: Ravnica Allegiance Prerelease Promos Type: Creature Mutant Rarity: Rare Cost: {G}{U} Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana. {T}: The next time target creature adapts this turn, it adapts as though it had no +1 +1 counters on it.