Kavu Recluse

That tap ability points at the Apocalypse-era fixation with color-hosing as a dial rather than a switch. Turning a land into a Forest until end of turn does nothing on its own, but it props open the door to whatever your other cards punish: Forests that suddenly answer to a "destroy target Forest" effect, or that produce green when paired with the right mana abilities, or that lose their identity to a tribal land-hate piece. The body is what a Planeshift common gives you for the slot, a serviceable beater, but the repeatable activation is the part that earns shelf space in toolbox builds and pet decks: a tutorable, untaps-every-turn engine for forcing land types onto an opponent's mana base or your own. It reads as a curiosity because the payoffs are diffuse, scattered across cards that care about Forests specifically rather than lands generally, and you have to assemble both halves yourself. That assembly is the whole appeal for the kind of player who collects functional oddities: a red creature whose job is to lie about what color of land it is looking at, quietly enabling effects that were never meant to reach the target it just created.