Gaea's Cradle + Stone-Seeder Hierophant + Umbral Mantle

G identity

Commander legal

The 3 combo pieces

• Gaea's Cradle
• Stone-Seeder Hierophant
• Umbral Mantle

What must be in place

Umbral Mantle attached to Stone-Seeder Hierophant.
Stone-Seeder Hierophant does not have summoning sickness.
You control at least four creatures.

How to execute it

1. Activate Gaea's Cradle by tapping it, adding at least {G}{G}{G}{G}.
2. Activate Stone-Seeder Hierophant by tapping it, untapping Gaea's Cradle.
3. Activate Stone-Seeder Hierophant by paying {3} and untapping it, giving it +2/+2 until end of turn.
4. Repeat.

What the combo produces

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