How can you create a combo with Mikaeus, the Unhallowed, Monoskelion, Ashnod's Altar?
user
[START OF COMBO]This combo can be formed with Mikaeus, the Unhallowed, Monoskelion, Ashnod's Altar

Color identity: B
Mana cost: 
Steps:
  1. Activate Ashnod's Altar by sacrificing Monoskelion, adding {C}{C}.
  2. When Monoskelion dies, its undying ability triggers, returning itself from your graveyard to the battlefield with two +1/+1 counters on it.
  3. Activate Monoskelion twice by paying {2} and removing two +1/+1 counters from it, dealing 2 damage to any target.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite damage
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Monoskelion does not have a +1/+1 counter on it.
[END OF COMBO PREREQUISITES]
assistant