Breeches, Brazen Plunderer

Impulse-draw off Pirate damage is old red technology, but bolting it to a tribal trigger rather than a single creature turns a trickle into a machine. The clause reads "whenever one or more Pirates you control deal damage to your opponents," which means it fires once per damage event and exiles the top card of each opponent hit: a single blow exiles the top card of that opponent's library regardless of whether one Pirate or six landed, and regardless of how much damage got through. The scaling axis is not board width or damage total but the number of opponents you touch, so a table full of players is what makes the theft add up. The genuinely load-bearing piece is the color rider. Red's version of card advantage usually strands you with cards you cannot pay for; here that friction is erased, since any exiled spell can be cast with mana of any color, and you may play those cards through end of turn. Menace on a 3/3 is the delivery system: cheap enough to keep the body honest, evasive enough to force the trigger through a lone blocker. Partner is the real deckbuilding lever, letting you pair this with a commander that widens the board or refunds mana, so more Pirates connect with more opponents each combat. The design treats theft as a repeatable rate: every card you steal is a live one, and the count grows with how many players you can reach, not with how hard any single hit lands.