Volrath, the Shapestealer, Viridian Joiner, and Gilder Bairn

Prerequisites

• Volrath, the Shapestealer on the battlefield
• Viridian Joiner on the battlefield
• Gilder Bairn on the battlefield
• Volrath does not have summoning sickness
• Viridian Joiner and Glider Bairn have at least one counter on them
• available

Steps

1. Activate Volrath by paying , causing Volrath to become a copy of Viridan Joiner until your next turn
2. Activate Volrath by tapping it, adding at least seven
3. Activate Volrath by paying , causing Volrath to become a copy of Glider Bairn until end of turn
4. Activate Volrath by paying and untapping it, proliferating all the counters on target permanent
5. Repeat from step 2

Results

• Infinite green mana
• Infinite proliferate