Mortuary + Aetherflux Reservoir + Bolas's Citadel + Goblin Trashmaster

Mortuary

Aetherflux Reservoir

Bolas's Citadel

Goblin Trashmaster

How it works

1. Activate Goblin Trashmaster by sacrificing a creature with mana value 1 or less.
2. When the creature dies, Mortuary triggers, putting the creature from your graveyard onto the top of your library.
3. Resolve the Goblin Trashmaster ability.
4. Cast the creature from the top of your library by paying 1 life.
5. Aetherflux Reservoir triggers, causing you to gain 1 life
6. Repeat.

This clever loop turns the top of your library into an endless recycling bin for cheap threats, fueled entirely by life rather than mana. Bolas's Citadel lets you cast that recycled creature straight from the library while substituting its mana cost with a small life payment, which in turn immediately triggers Aetherflux Reservoir to pad your life total back up and build toward a lethal payoff. Meanwhile, Goblin Trashmaster provides the necessary sacrifice outlet to send the creature away, and the moment it hits the graveyard, Mortuary steps in to place it right back on top of your library so the entire sequence can begin anew.