Darkblade Agent

The condition does all the gating: meet it, and a vanilla-adjacent body becomes a deathtouch threat that converts every connection into a card. That single surveil-this-turn check turns an otherwise modest 2/3 into something the opponent cannot block profitably, since deathtouch trades up against anything and the draw trigger punishes them for not blocking at all. The design lesson is that the surveil mechanic was never just graveyard filling or smoothing; it was a recurring "have you done this thing yet?" switch that other cards could read off of, and this is the cleanest expression of that idea on a creature. The friction is real and ongoing: the abilities evaporate at end of turn, so you have to re-pay the surveil tax every combat you want them active, which keeps the card honest against builds that can't reliably trigger it. What it rewards is a deck that surveils as a matter of course (cheap enablers, scry-like loot effects, lands that surveil), where the condition stops feeling like a cost and starts feeling like a default state. Strip the enablers away and you have a fragile evasionless body; surround it with them and you have a repeatable engine that draws a card and threatens to kill whatever steps in front of it.