How can you create a combo with Zaxara, the Exemplary, Umbral Mantle, Biomancer's Familiar?
user
[START OF COMBO]This combo can be formed with Zaxara, the Exemplary, Umbral Mantle, Biomancer's Familiar

Color identity: BGU
Mana cost: 
Steps:
  1. Activate Zaxara by tapping it, adding two mana of any color.
  2. Activate Zaxara by paying {1} and untapping it, giving itself +2/+2 until end of turn.
  3. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinitely large Zaxara until end of turn[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Umbral Mantle attached to Zaxara.
  - Zaxara does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant