How can you create a combo with Blood Artist, Forsaken Miner, Phyrexian Altar?
user
[START OF COMBO]This combo can be formed with Blood Artist, Forsaken Miner, Phyrexian Altar

Color identity: B
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Forsaken Miner, adding {B}.
  2. When Forsaken Miner dies, Blood Artist triggers.
  3. When you commit that crime, Forsaken Miner triggers, causing you to pay {B} to return it from your graveyard to the battlefield.
  4. Resolve the Blood Artist trigger, causing target opponent to lose 1 life and gaining 1 life.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant