Pirate Hat
A discounted equip cost scaled to a single creature type is a lever Wizards has pulled repeatedly, and here it does the load-bearing work: at a pittance to re-attach onto a Pirate and full retail onto anything else, the reduced cost turns a two-mana looting engine into something a dedicated deck can shuffle across a board almost for free. The loot trigger itself is old technology, the same draw-then-discard Merfolk Looter has offered for years, but bolting it to combat changes the axis. The engine only fires when the creature swings, so it wants an aggressor rather than a durdle, and it converts every attack into a filtering event that smooths draws and stocks the graveyard. The +1/+1 is nearly incidental, a nudge to keep the equipped body relevant in combat rather than a reason to run the card. Mobility is what makes the discount matter: a looter fixed to one creature is fragile, but a looter you can relocate onto whichever Pirate is likeliest to connect turns a removed attacker into a minor setback instead of a dead investment. It is a modest engine tuned to reward playing a critical mass of one creature type, the payoff scaled precisely to how committed you are to the theme.
