How can you create a combo with Leyline of Abundance, Karn, the Great Creator, Basalt Monolith?
user
[START OF COMBO]This combo can be formed with Leyline of Abundance, Karn, the Great Creator, Basalt Monolith

Color identity: G
Mana cost: 
Steps:
  1. Activate Karn's first loyalty ability by putting a loyalty counter to it, causing Basalt Monolith to become an artifact creature until end of turn.
  2. Activate Basalt Monolith's first ability by tapping it, adding {C}{C}{C}{G}.
  3. Activate Basalt Monolith's last ability by paying {3}, untapping it.
  4. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters
  - Infinite colorless mana
  - Infinite green mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Basalt Monolith does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant