Skyclave Squid

Defender is normally a creature's whole personality: you deploy the wall to block and never think about the top half of the card again. This flips that arrangement by making the keyword conditional on your own tempo. A 3/2 for two is a genuine attacking body, well past the stats most walls of that size are allowed to keep, and any land you drop that turn unlatches the swing. Stumble on your mana and it sits back as a wall that trades up into a two-drop; hit your land drop and it comes across as a real beater. The permission is granted on land entry, which is the design's most interesting hinge: fetch effects and extra land drops keep the attack switched on turn after turn (though the permission to attack lasts the whole turn regardless, so a second land entering the same turn adds nothing to the same combat). The floor is a fine defensive body; the ceiling is a 3/2 that attacks on any turn your manabase keeps developing, which for a deck built to churn lands is nearly all of them. It reads like a Grizzly Bears with an upside, except the upside is paid for by asking you to keep hitting land drops rather than treating them as an afterthought once your curve is out.