How can you create a combo with Animation Module, Scion of the Swarm, Krark-Clan Ironworks, Dross Harvester?
user
[START OF COMBO]This combo can be formed with Animation Module, Scion of the Swarm, Krark-Clan Ironworks, Dross Harvester

Color identity: B
Mana cost: 
Steps:
  1. Activate Krark-Clan Ironworks by sacrificing an artifact creature, adding {C}{C}.
  2. When the creature dies, Dross Harverster's second ability triggers, causing you to gain 2 life.
  3. Scion of the Swarm triggers, putting a +1/+1 counter on itself.
  4. Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Scion of the Swarm
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least one artifact creature.
[END OF COMBO PREREQUISITES]
assistant