Mendrik Carr, Chief Mate

Haste
Whenever a Pirate you control deals combat damage to a player, that player exiles the top
card of their library and you create a colorless Treasure artifact token with "{t}, Sacrifice this artifact: Add one mana of any color." Until end
of turn, you may cast that card, and you may spend mana as though it were mana of any type
to cast that spell.