Giant Koi

A 5/7 for six mana is a body most control-adjacent blue decks would rather not spend a whole turn deploying, and that is exactly the tension this fish resolves. Making it unblockable costs , but you can settle that bill by tapping the artifacts and creatures you already have in play, each covering . The usual problem with a top-heavy beater is that the attack step fights the develop step for your mana: you either commit threats or you push damage, not both. Here a wide, tapped-out board becomes the fuel for evasion, so the koi swims through on the strength of everything you built earlier rather than mana held in reserve. Islandcycling salvages the draws where six mana is the wrong ask, converting a stranded copy into blue fixing when the game is about hitting land drops instead of closing it out, which trims the dead-draw risk on an expensive creature. Waterbend is the newer piece of vocabulary at work: an activated, convoke-style cost aimed at a single creature's evasion rather than at casting a spell, and this is a clean demonstration of what the mechanic is for. A finisher whose ceiling rises with the board you were already assembling.