How can you create a combo with Endrek Sahr, Master Breeder, Phyrexian Altar, Mortus Strider?
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[START OF COMBO]This combo can be formed with Endrek Sahr, Master Breeder, Phyrexian Altar, Mortus Strider

Color identity: UB
Mana cost: {1}{U}{B}
Steps:
  1. Cast Mortus Strider.
  2. Endrek Sahr triggers, creating three 1/1 Thrull tokens.
  3. Sacrifice Mortus Strider and 3 Thrull tokens for {2}{U}{B}.
  4. Mortus Strider returns to your hand.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Endrek Sahr, Master Breeder must be on the battlefield
  - Phyrexian Altar must be on the battlefield
  - Mortus Strider must be in your hand
[END OF COMBO PREREQUISITES]
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