How can you create a combo with Agatha of the Vile Cauldron, Umbral Mantle, Cryptolith Rite?
user
[START OF COMBO]This combo can be formed with Agatha of the Vile Cauldron, Umbral Mantle, Cryptolith Rite

Color identity: RG
Mana cost: 
Steps:
  1. Activate the creature with Umbral Mantle attached by tapping it, adding {1}.
  2. Activate the creature by paying {1} due to Agatha of the Vile Cauldron and untapping it, giving itself +2/+2 until end of turn.
  3. Repeat.[END OF COMBO STEPS]

Result:
  - Infinitely large creature until end of turn[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Umbral Mantle attached to a creature that does not have summoning sickness.
  - Agatha of the Vile Cauldron has power 2 or greater.
[END OF COMBO PREREQUISITES]
assistant