How can you create a combo with Scholar of the Ages, Burnt Offering, Entreat the Dead?
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[START OF COMBO]This combo can be formed with Scholar of the Ages, Burnt Offering, Entreat the Dead

Color identity: UBR
Mana cost: {B}
Steps:
  1. Cast Burnt Offering by paying {B} and sacrificing Scholar of the Ages, adding seven mana in any combination of {B} and/or {R}.
  2. Cast Entreat the Dead for X = 1 by paying {2}{B}{B}{B}, returning Scholar of the Ages from your graveyard to the battlefield.
  3. Scholar of the Ages triggers, returning Burnt Offering and Entreat the Dead from your graveyard to your hand.
  4. Repeat any number of times.
  5. Once you have infinite mana, you may choose any amount for X in step 2.[END OF COMBO STEPS]

Result:
  - Infinite black mana
  - Infinite blinking
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite red mana
  - Infinite storm count
  - Return all creatures from your graveyard to the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Scholar of the Ages must be on the battlefield
  - Burnt Offering must be in your hand
  - Entreat the Dead must be in your hand
[END OF COMBO PREREQUISITES]
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