Captain Barthabus

Raid-- At the beginning of your end step, if you attacked with a creature this turn, you may search your library for a Pirate card with a converted mana cost less than or equal to the number of creatures you attacked with this turn, reveal it, then put it onto the battlefield tapped.
If you attack with 5 or more pirates during combat, Captain Barthabus gains Hexproof and Double strike until the end of the turn.