Captain Saphara

+2: Target creature you control gets +X/+X, where X is the number of Pirates you control.
-3: Search your library for a card called Captain Yvana, then search your library for a card called Sephara's Dreadnought. Then shuffle your library.
-7: Return all Pirates in graveyards to the battlefield under your control. they gain haste and "this creature can't be blocked" until end of turn.