Sarcatog
The Atog line has always run on a single greedy idea: a small body with a sacrifice cost that turns spent permanents into combat math. This one splits the appetite in two. The original ate artifacts and ballooned wherever cheap permanents were lying around; here that line survives, but a second pump joins it, one that exiles two cards from the graveyard at a time. That graveyard clause is what redefines the card. It points away from artifact storehouses and toward a bin that has already done its work: a deck that mills, dredges, or simply burns through resources can convert the leftovers into a single decisive swing, mana-free. The body stays a 1/2 and every pump is temporary, so it never threatens to take over a board on its own. What it offers is conversion: surplus into damage, in one combat step. The real cost is the exile itself, which bites hardest in the deck that most wants to feed it. Reanimation and flashback want those same cards in the graveyard, alive as resources; feeding the Atog burns them for good. So the card draws a line in the deck it goes into. Either the graveyard is a library you keep returning to, or it is fuel you spend through this creature's mouth, and the first activation settles which.
