How can you create a combo with Chainer, Dementia Master, Wurmcoil Engine, Phyrexian Altar, Carmen, Cruel Skymarcher?
user
[START OF COMBO]This combo can be formed with Chainer, Dementia Master, Wurmcoil Engine, Phyrexian Altar, Carmen, Cruel Skymarcher

Color identity: WB
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Wurmcoil Engine, adding {B}.
  2. When Wurmcoil Engine dies, it and Carmen trigger.
  3. Resolve the Wurmcoil Engine trigger, creating two 3/3 Wurm artifact creature tokens.
  4. Resolve the Carmen trigger, causing you to gain 1 life and put a +1/+1 counter on it.
  5. Activate Phyrexian Altar twice by sacrificing the Wurm tokens, adding {B}{B}.
  6. When the Wurms die, Carmen trigger twice, causing you to gain 2 life and put two +1/+1 counters on it.
  7. Activate Chainer by paying {B}{B}{B} and 3 life, putting Wurmcoil Engine from your graveyard onto the battlefield.
  8. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite leaves the battlefield
  - Infinite enters the battlefield
  - Infinite sacrifice triggers
  - Infinite death triggers
  - Infinite lifegain triggers
  - Infinite +1/+1 counters on Carmen[END OF COMBO RESULT][END OF COMBO]

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