Agatha's Soul Cauldron + Barrenton Medic + Immaculate Magistrate

GW identity

Commander legal

The 3 combo pieces

• Agatha's Soul Cauldron
• Barrenton Medic
• Immaculate Magistrate

What must be in place

You control at least two Elves.
Immaculate Magistrate does not have summoning sickness.

How to execute it

1. Activate Immaculate Magistrate by tapping it, putting a +1/+1 counter on it for each Elf you control.
2. Activate Immaculate Magistrate using Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it.
3. Repeat.
4. Once you have infinite +1/+1 counters on Immaculate Magistrate, you may instead target any other creature, and you may also untap them infinitely using Barrenton Medic's second ability.
5. You may also repeat this loop whenever damage would be dealt to you or a permanent you control, and then use Barrenton Medic's first ability to prevent the damage.

What the combo produces

• Infinite +1/+1 counters on creatures you control
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control
• Lock
• Prevent all damage that would be dealt to permanents you control
• Prevent all damage that would be dealt to you