Mortuary + Bolas's Citadel + Bloodflow Connoisseur + Haywire Mite

Mortuary

Bolas's Citadel

Bloodflow Connoisseur

Haywire Mite

How it works

1. Activate Bloodflow Connoisseur by sacrificing Haywire Mite.
2. When Haywire Mite dies, it and Mortuary triggers.
3. Resolve the Mortuary trigger, putting Haywire Mite from your graveyard onto the top of your library.
4. Resolve the Haywire Mite trigger, causing you to gain 2 life
5. Resolve the Bloodflow Connoisseur ability.
6. Cast Haywire Mite from the top of your library by paying 1 life due to Bolas's Citadel.
7. Repeat.

This ingenious loop turns life into a relentless engine by leveraging Bolas's Citadel to cast spells directly from the top of your library at the cost of your life total rather than their mana value. Bloodflow Connoisseur acts as the active sacrifice outlet that feeds this machine, while Haywire Mite serves as the perfect recyclable fodder—whenever it hits the graveyard, Mortuary immediately redirects it back to the top of your library so the Citadel can let you play it again. Best of all, Haywire Mite's own death trigger cushions the life payments by constantly gaining you 2 life, allowing you to feed the engine indefinitely to grow an arbitrarily large Bloodflow Connoisseur and storm off into the win.