Bident of Thassa

Two cards stapled together at a deliberate discount, and the seam between them is where the design lives. The first half is Coastal Piracy on an enchantment-artifact frame: every creature that connects refills your hand, turning board presence into a draw engine without asking you to overcommit. The second half is the part players forget about and then lose to. The tap ability forces your opponent's creatures to attack into a board you've built to punish them, but the timing window is narrower than it looks: creatures can only attack during their controller's combat phase, so the coercion only bites if you activate it on the opponent's turn before they declare attackers (their upkeep, precombat main, or beginning of combat). Do that, and the defensive wall you were staring at has to throw itself forward, walking into removal, a sweeper, or simply better blocks. That turns a value piece into a tempo weapon: it breaks stalls, baits attacks at the moment you choose, and converts a passive opponent into an active one against their will. Blue rarely gets to dictate the combat step from outside the attacking role, which is what makes the forced-attack clause the more interesting half. The card-draw line is the reason it gets into decks; the compulsion line is the reason careful players treat it as a threat rather than a durdle. It asks you to be the aggressor, then rigs the board so the opponent has no choice but to oblige.