Namazu Trader

Sacrifice-on-attack is the axis this card is built around, and everything else exists to feed it. The enters-the-battlefield line pays a life for a Treasure, unremarkable on its own but pointed given what follows: the card wants artifacts and expendable creatures around, and it manufactures one the moment it lands. When it swings, you may throw away another creature or artifact, and if you do, surveil 2 fills the graveyard while ordering your next few draws. Surveil normally reads as gentle card selection; strapped to a repeatable sacrifice outlet that fires every combat step, it becomes an engine converting a board's dead weight into fuel for the yard. The Treasure is a down payment on that loop, either ramp or a self-immolating target when nothing else is expendable. The 3/4 body is sized to survive incidental damage and keep coming back to the red zone, which is exactly the durability a recurring sacrifice outlet needs. This is graveyard-matters black: reanimator shells that want their fatties buried, aristocrat lines already flush with fodder, any deck content to trade a token for two cards of self-mill. Strip those synergies away and you have a fair-sized creature that nicks you for a life on the way in and does little else.