How can you create a combo with Xathrid Necromancer, Artificial Evolution, Ashnod's Altar?
user
[START OF COMBO]This combo can be formed with Xathrid Necromancer, Artificial Evolution, Ashnod's Altar

Color identity: UB
Mana cost: {U}
Steps:
  1. Cast Artificial Evolution by paying {U}, changing all instances of "Zombie" on Xathrid Necromancer to "Human" until end of turn.
  2. Activate Ashnod's Altar by sacrificing any other Human, adding {C}{C}.
  3. Xathrid Necromancer triggers, creating a 2/2 Human creature token.
  4. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Xathrid Necromancer must be on the battlefield
  - Artificial Evolution must be in your hand
  - Ashnod's Altar must be on the battlefield
  - You control at least one additional Human.
[END OF COMBO PREREQUISITES]
assistant