Agatha's Soul Cauldron + Cinderhaze Wretch + Incubation Druid

Mana needed: {3}{G}{G} minus {1}{G}{G} for each +1/+1 counter on Incubation Druid

BG identity

Commander legal

The 3 combo pieces

How to execute it

  1. If Incubation Druid does not have a +1/+1 counter on it, activate its adapt ability by paying {3}{G}{G}, putting three +1/+1 counters on it.
  2. Activate Incubation Druid by tapping it, adding {G}{G}{G}.
  3. Activate Incubation Druid using Cinderhaze Wretch's second ability by putting a -1/-1 counter on it, untapping Incubation Druid.
  4. Repeat.

What the combo produces