How can you create a combo with Weaver of Harmony, Umbral Mantle, Sanctum of Fruitful Harvest?
user
[START OF COMBO]This combo can be formed with Weaver of Harmony, Umbral Mantle, Sanctum of Fruitful Harvest

Color identity: G
Mana cost: {G}
Steps:
  1. At the beginning of your precombat main phase, Sanctum of Fruitful Harvest triggers.
  2. Holding priority, activate Weaver of Harmony by paying {G} and tapping it, copying Sanctum of Fruitful Harvest's ability.
  3. Resolve the copy of Sanctum of Fruitful Harvest's ability, adding at least {G}{G}{G}{G}{G}.
  4. Activate Weaver of Harmony by paying {3} and untapping it, giving it +2/+2 until end of turn.
  5. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinitely large Weaver of Harmony until end of turn[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 four other Shrines.
[END OF COMBO PREREQUISITES]
assistant