Reef Shaman

Land transmutation as a recurring effect, attached to a body cheap enough to ignore: that is the niche this fills. Most of Magic's "change a land's type" effects come stapled to a one-shot spell (Sleight of Mind territory, or the splashier Spreading Seas), but here the work is repeatable, untapping every turn to retype any land into whatever basic type the moment demands. The mana-fixing read is the obvious one: tap to turn an opponent's untapped land into an Island and watch them fail to cast a red spell, or convert your own land for a color you are short on. But the more interesting axis is enabling, not denial. Anything that cares about basic land types (landwalk, domain, type-matters payoffs) gets a turn-by-turn lever from a single blue mana. The 0/2 body is doing exactly what it should: it survives the small pings that would clear a fragile utility creature, and it asks nothing of you in combat, because the point was never the attack. This is one of Apocalypse's quieter contributions to the "lands have types, and types are a resource" design thread, the same thread that makes fetchlands and dual-type cards tick. It does its job slowly, one activation per turn, and rewards a deck built to abuse a specific basic type rather than one that just wants better mana.