How can you create a combo with Mikaeus, the Unhallowed, Retribution of the Ancients, Blood Pet?
user
[START OF COMBO]This combo can be formed with Mikaeus, the Unhallowed, Retribution of the Ancients, Blood Pet

Color identity: B
Mana cost: 
Steps:
  1. Activate Blood Pet by sacrificing it, adding {B}.
  2. Blood Pet dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Activate Retribution of the Ancients by paying {B} and removing the +1/+1 counter from Blood Pet, targeting any creature.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Reduce any number of target creatures' toughness to zero[END OF COMBO RESULT][END OF COMBO]

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