The 4-cost Trafalgar Law has become one of the strongest plays for this deck, giving you interaction with the opponents side of the field while still throwing a body on the field
Of course, the only time this card may not be of use is if your opponent is playing the same creatures you are, but you can simply name any creature type not on the board, and it will function as a standard board wipe instead
Just need to have fun
The deck then adds a number of value and control elements including card draw spells (Rain of Revelation, Opt, Read the Tides), bounce spells (Read the Tides, Unsubstantiate), counterspells (Cancel), and removal (Capture Sphere)
For maximum speed, going black-red leads to things like Captain Lannery Storm (bundled with haste) and a Metallic Mimic that makes every Pirate bigger as long as it sticks around