How can you create a combo with Elemental Mastery, Galvanic Juggernaut, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Elemental Mastery, Galvanic Juggernaut, Phyrexian Altar

Color identity: R
Mana cost: 
Steps:
  1. Activate Galvanic Juggernaut by tapping it, creating five 1/1 Elemental creature tokens with haste.
  2. Activate Phyrexian Altar by sacrificing an Elemental, adding one mana of any color.
  3. The Elemental dies, triggering Galvanic Juggernaut, untapping Galvanic Juggernaut.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite creature tokens with haste
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Elemental Mastery attached to Galvanic Juggernaut.
  - Galvanic Juggernaut does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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