Agatha of the Vile Cauldron + New Horizons + Silvanus's Invoker

RG identity

Commander legal

The 3 combo pieces

• Agatha of the Vile Cauldron
• New Horizons
• Silvanus's Invoker

How to execute it

1. Activate the land with New Horizons attached by tapping it, adding two mana of any color.
2. Activate Silvanus's Invoker by paying {1}, untapping the land and causing it to become an 8/8 Elemental with trample and haste in addition to its other types until end of turn.
3. Repeat.

What the combo produces

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