Ashaya, Soul of the Wild + Darksteel Garrison + Barrenton Medic

Prerequisites

• Barrenton Medic does not have summoning sickness.
• Darksteel Garrison attached to Barrenton Medic.

Steps

1. 1Activate Barrenton Medic by tapping it, adding .
2. 2Darksteel Garrison triggers, giving Barrenton Medic +1/+1 until end of turn.
3. 3Activate Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it.
4. 4Repeat.

Effects

• Infinite -1/-1 counters on a permanent
• Infinite green mana