Nightveil Sprite

The trick to surveil on an attack trigger is that it pays you twice for committing the same evasive body to the red zone. The flier already does what a one-power beater is supposed to do: chip in for one, dodge most blockers, close a game over enough turns. Adding surveil 1 to each swing means every attack is also a library smoothing, either drawing the next land you need or feeding a card you want in the graveyard. That second clause pulls the card out of generic-two-mana-flier territory: it turns aggression into selection, and rewards graveyard-hungry shells that want chaff in the bin rather than on top. The surveil happens on declare-attackers, before damage, so it informs nothing about that turn's combat math; its value is forward-looking, setting up the next draw or filling a yard that some other card is waiting to exploit. The body stays honest about the rate, a 1/2 that trades down into almost anything and asks you to protect it rather than race with it. Surveil as a mechanic was always a bridge between aggro tempo and grindy card quality, and this is one of the cleanest expressions of that bridge: a creature whose offense and its deck-sculpting are the same action.