Mortuary + Bloodflow Connoisseur + Fear of Lost Teeth + Gwenom, Remorseless

Mortuary

Bloodflow Connoisseur

Fear of Lost Teeth

Gwenom, Remorseless

How it works

1. Activate Bloodflow Connoisseur by sacrificing Fear of Lost Teeth.
2. When Fear of Lost Teeth dies, it and Mortuary triggers.
3. Resolve the Mortuary trigger, putting Fear of Lost Teeth from your graveyard onto the top of your library.
4. Resolve the Fear of Lost Teeth trigger, causing you to gain 1 life and dealing 1 damage to any target
5. Resolve the Bloodflow Connoisseur ability.
6. Cast Fear of Lost Teeth from the top of your library by paying 1 life due to Gwenom.
7. Repeat.

This loop relies on recycling a cheap creature through your library to continuously trigger death effects. Mortuary ensures that whenever Fear of Lost Teeth hits the graveyard, it goes straight to the top of your library instead, setting it up to be re-cast. Gwenom, Remorseless enables you to cast it from the top of your library by paying life rather than its mana cost, a cost easily offset by the life gained from the dying creature. Meanwhile, Bloodflow Connoisseur acts as the sacrifice outlet to start the cycle while growing larger with infinite +1/+1 counters.