Prototype X-8

Alchemy: Edge of Eternities (YEOE) #24 · Mythic · Legendary Artifact Creature — Robot Octopus

Mana cost: {8}{U}{B}

This spell costs {2} less to cast for each creature card in your graveyard.
Whenever another creature you control enters, if you cast it, sacrifice it. Conjure a duplicate of it onto the battlefield. The duplicate perpetually becomes a Robot artifact in addition to its other types.