Marwyn, the Nurturer + Umbral Mantle

Mana needed: {2} at most

G identity

Commander legal

The 2 combo pieces

• Marwyn, the Nurturer
• Umbral Mantle

What must be in place

Marwyn does not have summoning sickness.

How to execute it

1. Activate Marwyn by tapping it, adding an amount of {G} equal to its power.
2. Activate Marwyn 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