How can you create a combo with Rundvelt Hordemaster, Mortuary, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Rundvelt Hordemaster, Mortuary, Phyrexian Altar

Color identity: BR
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing a Goblin that can be cast using one colored mana, adding one mana of any color.
  2. The Goblin dies, triggering Rundvelt Hordemaster and Mortuary.
  3. Resolve the Mortuary trigger, putting the Goblin on top of your library from your graveyard.
  4. Resolve the Rundvelt Hordemaster trigger, exiling the Goblin and allowing you to cast it until the end of your next turn.
  5. Cast the Goblin from exile by paying its mana cost.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - 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:
  - All permanants must be on the battlefield
  - You control a nontoken Goblin that can be cast using one colored mana.
[END OF COMBO PREREQUISITES]
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