Just some random suggestions since you want to steal things, Spelljack and Desertion

Mana is a little slow I think. Too many things that come in to play tapped. Love the general.

How many games have you played with it? Does all the lands coming in to play tapped hurt you? Check out my deck, there are some cards in there that might benefit this deck.

Also you should add the basics, Command Tower , Lightning Greaves , and Swiftfoot Boots .

Love the theme! I'm trying to get our play group to do a 'whacky deck night' w/ someone doing pirates, another ninjas, samurai, etc. Stuff that may not normally get to see play. +1 from me!

Its funny, i actually have a friend that plays this deck and only considers cards he deems pirate enough. the deck is really mean but it works very well, good luck with it