Stormsurge Kraken

Hexproof on a 5/5 for five mana is a clean defensive shell: an untargetable threat opponents have to answer through wraths or combat, not spot removal. The Lieutenant clause turns that shell into an engine. With your commander on the board, the Kraken swells to a 7/7 and starts paying you two cards whenever it becomes blocked, which inverts the usual attacker's dilemma. A 7/7 with no evasion invites a gang-block the moment the table decides it is dangerous, and that is exactly the response the card is built to punish: the block itself, however many creatures the defender commits, fires the trigger once and refills your hand. Normally you want a beater that size to connect for damage; this one is just as happy to be chumped, because the block is the payoff, and the toughness means a single blocker rarely kills it. Lieutenant was a short-lived experiment in tethering a creature's full power to the commander's presence, a deliberate bargain that rewards keeping the leader alive while leaving the card a plain (if sturdy) hexproof body whenever the commander is out of the zone. Few of those Lieutenant designs earned a second look; this one's blend of protection and punishment-on-block is the most coherent of the bunch, a Kraken built on the argument that the best way to make an unevasive threat dangerous is to make blocking it a mistake.