Crawl from the Cellar

Regrowth for creatures, stapled to a graveyard-fed clock: the card wants to be cast twice, and the flashback clause is the reason it earns a slot rather than settling for being a color-shifted Raise Dead. The first cast, at a single black, returns a fallen creature to hand; the flashback for four returns another and exiles the sorcery, so the two-for-one is paced across the arc of a grindy game rather than delivered up front. The +1/+1 counter rider is the tell about what deck it was built to feed. Recursion that also grows a Zombie is doing double duty in a shell that both mills itself and swarms wide with tokens; the counter matters because Zombie strategies win by outnumbering, so recovery and the go-wide plan share one card. The counter is optional and the recursion is not, which keeps it playable outside tribal builds: point it at a value creature and simply skip the counter clause. What holds the rate down is timing. It is a sorcery both times, so there is no ambush recursion and no instant-speed sacrifice-and-return loop; the graveyard payoff is deliberate and slow. That patience is the point of the design, built to reward a deck willing to spend two turns getting the same body back rather than one turn getting more.