How can you create a combo with Necromancer's Magemark, Spiteful Hexmage, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Necromancer's Magemark, Spiteful Hexmage, Phyrexian Altar

Color identity: B
Mana cost: {B}
Steps:
  1. Cast Spiteful Hexmage by paying {B}.
  2. When Spiteful Hexmage enters the battlefield, it triggers, creating a Cursed Role token attached to it.
  3. Activate Phyrexian Altar by sacrificing Spiteful Hexmage, adding {B}.
  4. Spiteful Hexmage is returned to your hand instead of being put into your graveyard due to Necromancer's Magemark.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Necromancer's Magemark must be on the battlefield
  - Spiteful Hexmage must be in your hand
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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