Crumena, Lord of the Seas

+4: Search your library for an equipment card, and attach it to Crumena, Lord of the Seas.
-3: Phase Crumena, Lord of the Seas out of the game until your next upkeep, with all attached equipment. This can be used as an instant.
-15: Turn Crumena, Lord of the Seas into a 5/5 "High Elf Pirate" with Vigilance and all equipments still attached.