Naga Oracle
Surveil 3 is the premise, and the 2/4 body exists to pay for it. Look-and-bin effects had circled blue for years, but stapling one to a durable creature turns a graveyard-stocking spell into something that also holds a line: the toughness lets it blunt early aggression and outlast the board it sets up for. The number matters more than the keyword. Surveil 1 smooths a draw; surveil 3 lets you dig past three dead cards to find the one you want while pushing the rest into a graveyard you intend to mine. That second clause is the design hinge. Raw self-mill asks you to gamble (cards off the top, no say in what lands where), while surveil hands you the choice: bin exactly what you want fuel in the yard and stack the rest back on top in your preferred order. The cost is the body's ceiling. Four mana buys a wall that does nothing further once the trigger resolves, so it only earns a slot in a deck that treats a stocked graveyard as a resource rather than a liability. Strip out the recursion and reanimation payoffs and you have an overpriced blocker; build around them and everything you paid for happens the instant it enters, with the 2/4 left over as a bonus.

