Color Identity: B, G

Prerequisites

  1.  
    Spike Feeder
    Spike Feeder     in exile (exiled by
    Agatha's Soul Cauldron
    Agatha's Soul Cauldron    ).
  2.  
    Agatha's Soul Cauldron
    Agatha's Soul Cauldron     and
    Scion of the Swarm
    Scion of the Swarm     on the battlefield.
  3. Scion of the Swarm
    Scion of the Swarm     has at least one +1/+1 counter on it.

Steps

  1. Activate
    Scion of the Swarm
    Scion of the Swarm     using
    Spike Feeder
    Spike Feeder    's second ability by removing a +1/+1 counter from it, causing you to gain 2 life.
  2. Scion of the Swarm
    Scion of the Swarm     triggers, putting a +1/+1 counter on it.
  3. Repeat.

Results

  1. Infinite lifegain.
  2. Infinite lifegain triggers.

Metadata

  1. In 3 decks according to EDHREC.
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