How can you create a combo with Mikaeus, the Unhallowed, Murderous Redcap, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Mikaeus, the Unhallowed, Murderous Redcap, Phyrexian Altar

Color identity: BR
Mana cost: 
Steps:
  1. Sacrifice Murderous Redcap to Phyrexian Altar to add a mana of any color.
  2. Murderous Redcap's persist triggers, returning it from your graveyard to the battlefield with a -1/-1 counter.
  3. Murderous Redcap triggers, dealing damage equal to it's power to any target.
  4. Sacrifice Murderous Redcap to Phyrexian Altar to add a mana of any color.
  5. Murderous Redcap's undying triggers, returning it from your graveyard to the battlefield with a +1/+1 counter.
  6. Murderous Redcap triggers, dealing damage equal to it's power to any target.
  7. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant