The Ever-Changing 'Dane

The pun in the name spells out the design: a Shapeshifter that eats another creature and wears its skin, keeping only the ability that let it do the eating. That retained sacrifice clause is the whole engine. Because the copy always holds onto its own activated ability, it can shed one body for a better one whenever the board offers a target, cycling through whatever dies at your table rather than committing to a single form. Most copy effects in these colors are one-shot snapshots (Clone freezes on whatever it entered as, Vizier of Many Faces gives you two tries). This one keeps the option open indefinitely, turning a creature you would have sacrificed anyway into an upgrade rather than a loss. The cost is that each activation still eats a creature, so it wants a board that generates fodder or a shell where dying is the plan, not the price. It sits at the intersection of aristocrats and reanimation without being either: you are not returning creatures, you are becoming them, one death at a time. The 3/3 body is almost beside the point; nobody activates this to swing for three. It is a reusable transmutation valve, and the ability it never sheds is what makes the loop repeatable instead of a single clever trick.