Serra's Sanctum + Steward of the Harvest + Umbral Mantle

GW identity

Commander legal

The 3 combo pieces

• Serra's Sanctum
• Steward of the Harvest
• Umbral Mantle

What must be in place

You control at least three enchantments.

How to execute it

1. Activate the creature with Umbral Mantle attached using Serra's Sanctum's ability by tapping it, adding at least {W}{W}{W}.
2. Activate the creature by paying {3} and untapping it, giving it +2/+2 until end of turn.
3. Repeat.

What the combo produces

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