Aetherflux Reservoir + Gwenom, Remorseless + Mortuary + Yahenni, Undying Partisan

B identity

Commander legal

The 4 combo pieces

What must be in place

Gwenom has attacked this turn.
You control an additional nontoken creature.

How to execute it

  1. Activate Yahenni 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 Yahenni ability.
  4. Cast the creature from the top of your library by paying 1 life.
  5. Cast the creature from the top of your library by paying X life, where X is the creature's mana value.
  6. Aetherflux Reservoir triggers, causing you to gain 1 life for each spell you've cast this turn.
  7. Repeat.

What the combo produces