Careful Cultivation + Umbral Mantle + Agatha of the Vile Cauldron

Prerequisites

• Umbral Mantle and Careful Cultivation attached to the same creature you control that does not have summoning sickness.

Steps

1. 1Activate the creature with Careful Cultivation and Umbral Mantle attached by tapping it, adding .
2. 2Activate the creature by paying at most and untapping it, causing it to get +2/+2 until end of turn.
3. 3Repeat.
4. 4If Agatha of the Vile Cauldron has power 2 or greater, this combo nets infinite green mana.

Effects

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