Tam, Mindful First-Year Simic (Green/Blue) Multicolor Matters Tam, Mindful First-Year is honestly absurd in the best way
If that's not enough, the Pirate deck can also try out cards like Confiscate , which can swipe an enemy's nonland permanent, or Thirst For Knowledge , which can recklessly draw and discard cards to find a game-winning card
They play nicely with bounce spells like This Town Ain't Big Enough and flicker spells to construct an engine that shuts down your opponents, or you can just counter a spell and attack for damage
I like how this still keys off colorless mana, even if that is a drawback
You could always play Sheoldred to get a similar effect, a big body that snowballs if you untap with it
Their unusual planeswalker ability does not directly change their loyalty, instead asking their controller to roll a six-sided die to determine the outcome, ranging from token generation to burn effects