Rofellos, Llanowar Emissary + Umbral Mantle

G identity

The 2 combo pieces

• Rofellos, Llanowar Emissary
• Umbral Mantle

What must be in place

Rofellos does not have summoning sickness. You control at least three Forests.

How to execute it

1. Activate Rofellos by tapping it, adding at least {G}{G}{G}.
2. Activate Rofellos by paying {3} and untapping it, giving it +2/+2 until end of turn.
3. Repeat.

What the combo produces

• Infinite green mana
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control
• Infinitely large creature until end of turn