How can you create a combo with Weaver of Harmony, Umbral Mantle, Go-Shintai of Shared Purpose, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Weaver of Harmony, Umbral Mantle, Go-Shintai of Shared Purpose, Phyrexian Altar

Color identity: GW
Mana cost: {1}{G}
Steps:
  1. At the beginning of your end step, Go-Shintai triggers.
  2. Holding priority, activate Weaver of Harmony by paying {G} and tapping it, copying Go-Shintai's ability.
  3. Resolve the copy of Go-Shintai's ability, paying {1} to create at least six 1/1 Spirit creature tokens.
  4. Activate Phyrexian Altar five times by sacrificing five Spirit tokens, adding {4}{G}.
  5. Activate Weaver of Harmony by paying {3} and untapping it, giving it +2/+2 until end of turn.
  6. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinitely large Weaver of Harmony until end of turn
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Umbral Mantle attached to Weaver of Harmony.
  - Weaver of Harmony does not have summoning sickness.
  - You control at least five other Shrines.
[END OF COMBO PREREQUISITES]
assistant