How can you create a combo with Acererak the Archlich, Heartless Summoning, Carnival of Souls, Aetherflux Reservoir?
user
[START OF COMBO]This combo can be formed with Acererak the Archlich, Heartless Summoning, Carnival of Souls, Aetherflux Reservoir

Color identity: B
Mana cost: {B} plus enough mana to pay for commander tax, if applicable
Steps:
  1. Cast Acererak either from your hand or from the command zone by paying {B} and commander tax, if applicable.
  2. Aetherflux Reservoir triggers, causing you to gain 1 life for each spell you've cast this turn.
  3. Acererak enters the battlefield, triggering its first ability and Carnival of Souls.
  4. Resolve the Carnival of Souls trigger, causing you to add {B} and lose 1 life.
  5. Acererak enters the battlefield, returning Acererak from the battlefield to your hand, and venturing into Lost Mine of Phandelver.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite draw triggers
  - Near-infinite +1/+1 counters
  - Near-infinite colored mana
  - Near-infinite creature tokens
  - Near-infinite damage
  - Near-infinite enters the battlefield
  - Near-infinite lifegain
  - Near-infinite lifegain triggers
  - Near-infinite lifeloss
  - Near-infinite leaves the battlefield
  - Near-infinite storm count
  - Near-infinite Treasure tokens
  - Near-infinite ventures into the dungeon[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Acererak the Archlich must be in your hand or in the command zone
  - Heartless Summoning must be on the battlefield
  - Carnival of Souls must be on the battlefield
  - Aetherflux Reservoir must be on the battlefield
  - You have not completed Tomb of Annihilation.
[END OF COMBO PREREQUISITES]
assistant