Grinning Totem [Mirage] SPA Pacto corrompido its controller chooses target permanent

its controller chooses target permanent another player controls that shares a card type with it

Join forces — Whenever Mana-Charged Dragon attacks or blocks

in immovability like a mountain

) When Aven Cloudchaser enters the battlefield

Grinning Totem [Mirage] SPA Pacto corrompido its controller chooses target permanentSet: Mirage Type: Artifact Rare Cost: {4} {2}, {T}, Sacrifice Grinning Totem: Search target opponent's library for a card and exile it. Then that player shuffles their library. Until the beginning of your next upkeep, you may play that card. At the beginning of your next upkeep, if you haven't played it, put it into its owner's graveyard.