Mortuary + Bolas's Citadel + Bloodflow Connoisseur + Crookshank Kobolds

Mortuary

Bolas's Citadel

Bloodflow Connoisseur

Crookshank Kobolds

How it works

1. Activate Bloodflow Connoisseur by sacrificing Crookshank Kobolds
2. When Crookshank Kobolds dies, Mortuary triggers, putting Crookshank Kobolds from your graveyard onto the top of your library.
3. Resolve the Bloodflow Connoisseur ability.
4. Cast Crookshank Kobolds from the top of your library by paying 0 life.
5. Repeat.

This elegant loop turns a literal zero into an unstoppable engine by leveraging Bolas's Citadel to cast spells straight off the top of your library for life instead of mana. Because Crookshank Kobolds has a mana value of zero, you pay nothing to recast it every time Mortuary puts it right back on top of your library in response to being sacrificed. Bloodflow Connoisseur acts as the sacrificial outlet that keeps the cycle moving while permanently growing larger with every iteration, generating an infinite storm count and endless sacrifice triggers.