How can you create a combo with Basri's Lieutenant, Master Biomancer, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Basri's Lieutenant, Master Biomancer, Altar of Dementia

Color identity: GWU
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing another creature with a +1/+1 counter on it.
  2. When the creature dies, Basri's Lieutenant's second ability triggers, creating a 2/2 Knight creature token that enters the battlefield with at least two +1/+1 counters due to Master Biomancer.
  3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power.
  4. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least one additional creature that has a +1/+1 counter on it.
[END OF COMBO PREREQUISITES]
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