Agatha of the Vile Cauldron + Magus of the Candelabra + Umbral Mantle

RG identity

Commander legal

The 3 combo pieces

• Agatha of the Vile Cauldron
• Magus of the Candelabra
• Umbral Mantle

What must be in place

Agatha of the Vile Cauldron has power 2 or greater.
You control up to three lands that can tap to produce at least {3}.
Magus of the Candelabra does not have summoning sickness.
Umbral Mantle attached to Magus of the Candelabra.

How to execute it

1. Activate up to three lands by tapping them, adding at least {3}.
2. Activate Magus of the Candelabra by tapping it and paying {1} due to Agatha of the Vile Cauldron, untapping the five lands.
3. Activate Magus of the Candelabra by paying {1} due to Agatha of the Vile Cauldron and untapping it, giving itself +2/+2 until end of turn.
4. Repeat.
5. Once you have infinite mana, if you have infinite {R} and {G}, you may use it to activate Agatha of the Vile Cauldron's ability.

What the combo produces

• Infinite mana creatures you control can produce
• Infinite mana lands you control can produce
• Infinite power and toughness for most creatures you control until end of turn
• Infinite untap of creatures you control
• Infinite untap of lands you control
• Infinitely large creature until end of turn