Daggermaw Megalodon

A 5/7 with vigilance is a real blocker that also anchors an offensive board, but the Islandcycling toggle means the card is never dead in your hand, and that split is the point. In the games where you stumble on lands early, it becomes a two-mana tutor that finds an Island and keeps your drops on schedule; in the games that go long, the six-mana body is a defensive wall that never has to stop attacking. That dual identity answers the tension every fatty faces in a control shell. Cheap when you are screwed, a game-ending threat when you flood into the top of your curve: the two modes cover the exact spots where an expensive creature is otherwise a liability. Vigilance solves the tempo problem by letting the body defend and pressure in the same turn, and the rear-loaded stat line (more toughness than power) points the design squarely at the blocker role, where seven toughness dodges most of the damage-based removal that would trade cleanly with a smaller flyer or attacker. Nothing here is flashy; the interest is in how neatly the land-fetch half and the threat half hedge against opposite kinds of bad draws, giving a top-end creature the flexibility of a land without giving up its ability to end the game when it resolves on curve.