I was about to comment asking the same! I'm just getting back into Magic after like 10 years off and wanted to build pirates so I literally ordered this whole list plus a couple extras I like but I'm really interested to see how Mitch would upgrade it as well! One of the first ones I thought of, though, was cutting something for Splinter Twin which can go infinite with Port Razer. I'm normally not huge on 2-card combos unless I'm doing higher power decks but it does take a little bit of setup since Port Razer has no evasion and the "can only attack each opponent once per turn" clause means he has to have evasion for each opponent to be able to win outright.