Triarch Praetorian

Unearth is normally a one-shot transaction: pay the tax, swing once, watch the card leave for exile. Here the mechanic is welded to a payoff that only fires on the way in from the graveyard. Dynastic Codes draws two cards (and takes two life) whenever this enters the battlefield from a graveyard, and crucially it keys off the return itself, not on Unearth's printed cost. Any graveyard-to-battlefield effect trips it: a reanimation spell, a recursion effect that pulls from the yard, the Unearth ability on this very card. That reframes the 2/1 flier as a reusable draw-two engine rather than a beater, one that rewards a shell full of cheaper or repeatable ways to recur creatures than Unearth's own tax allows. The two-life-per-trip is what stops the loop from being free, and the exile-at-end-step clause means Unearth's path in particular yields a single draw, not an infinite one: the card only cycles again if some other effect returns it. The evasive body is nearly incidental. What distinguishes this design is that both halves of the equation, the recursion engine and its reward, live in the graveyard, so the ideal line is to discard it, mill it, and drag it back rather than hard-cast it and hold it on the table.