Agatha's Soul Cauldron + Devoted Druid + Solarion

G identity

Commander legal

The 3 combo pieces

• Agatha's Soul Cauldron
• Devoted Druid
• Solarion

How to execute it

1. Activate Solarion by tapping it, doubling the number of +1/+1 counters on it.
2. Activate Solarion using Devoted Druid's second ability by putting a -1/-1 counter on it, untapping Solarion.
3. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite green mana