Sunbathing Rootwalla
The name is a pun: this Rootwalla is out chasing sun across as many kinds of terrain as it can reach, and the effect scales with exactly that. Domain staples a mana sink onto a two-mana body, so the size of the swing tracks how many basic land types you can assemble. In a two-color shell the button is a mediocre four-mana +2/+2 until end of turn; anchor it to a fully-fixed five-type manabase and the same activation turns a plain 2/2 into a real threat, spending mana you would otherwise leave idle in the late game. That spread is the whole design tension. Green Lizards named Rootwalla share a recurring gimmick, a cheap body with a repeatable trick bolted on, and Basking Rootwalla and its madness-fueled cousins have carried that shape for decades. This one drops the discard payoff for a domain-scaled pump that rewards a different kind of deckbuilding: the boost is temporary rather than a permanent counter, so every attack is a fresh transaction paid in full. The steep, once-per-turn cost keeps it fair; it will never take over a board on its own, only convert a well-fixed manabase into incremental pressure. Curve filler for a deck that already wanted every land type it could find, and mostly inert wherever domain is beside the point.
