Kindly Ancestor // Ancestor's Embrace

Disturb usually hands a dead Spirit back as a copy of its former self, but the split here does something more disciplined: it takes a single ability, lifelink, and relocates it from a body to a host. The front is a modest 2/3 blocker whose lifelink pads your total while it trades or chumps on the ground. When it dies, the reverse cast returns it as an Aura, and now the lifelink you were getting from combat gets bolted onto a better creature: an evasive threat, a mana dork, anything that will actually connect and turn that keyword into real drain. That is the quiet cleverness of the design. Rather than recur the creature, it recurs the effect, and lets you choose a second recipient better positioned to use it. The Aura's exile-on-death rider keeps this from spiraling: once the Embrace would hit the graveyard, it is exiled instead, so you typically get two lifelink hosts across the card's life and no more. It is a two-event permanent, not an engine, and that hard ceiling is the trade for being able to move the ability at all. As a study in the mechanic, it shows disturb's less obvious mode: not repeating a creature at a new point on the curve, but taking one effect and giving it a second, differently shaped home.