Faerie Dreamthief

A one-mana flyer that keeps its promise in two acts, neither one waiting on the other. The front half is an evasive body with an enters-the-battlefield surveil that smooths the draw and, more to the point, can stock the graveyard while it sets up. Once the flyer has done its work as an attacker or a blocker and ended up in the yard, the exile ability cashes it in for a fresh card and a point of life. What separates this from an ordinary sacrifice-for-cards creature is that the two halves are independent: nothing about the surveil hinges on drawing later, and nothing about the graveyard draw asks the 1/1 to still be alive. The exile clause is the leash on the whole engine, because the draw is a one-shot and any hope of self-recursion loops has to look elsewhere. Paying life for that second card slots it into the color that has always been willing to bleed for cardflow, and the surveil-then-exile arc hands black a low-rarity refill engine that turns a spent evasive threat into raw advantage without a dedicated sacrifice outlet. From a single black mana you get an early flyer and a topdeck-quality resource later, folding tempo and grind into the same card slot.