How can you create a combo with Scrap Trawler, Krark-Clan Ironworks, Salvaging Station, Hangarback Walker?
user
[START OF COMBO]This combo can be formed with Scrap Trawler, Krark-Clan Ironworks, Salvaging Station, Hangarback Walker

Color identity: C
Mana cost: 
Steps:
  1. Activate Krark-Clan Ironworks by sacrificing the nontoken noncreature artifact, adding {C}{C}.
  2. Scrap Trawler triggers, returning Hangarback Walker from your graveyard to your hand.
  3. Activate Salvaging Station by tapping it, returning the noncreature artifact from your graveyard to the battlefield.
  4. Cast Hangarback Walker by paying {0}.
  5. Hangarback Walker enters the battlefield and dies as a state-based action due to having zero toughness.
  6. Scrap Trawler and Salvaging Station trigger.
  7. Resolve the Salvaging Station trigger, untapping itself.
  8. Resolve the Scrap Trawler trigger, returning nothing from your graveyard to your hand.
  9. Repeat.
  10. Once you have infinite mana, you may use it to cast Hangarback Walker, and then sacrifice Hangarback Walker to Krark-Clan Ironworks to get infinite 1/1 Thopter creature tokens.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Hangarback Walker
  - Infinite colorless mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Scrap Trawler must be on the battlefield
  - Krark-Clan Ironworks must be on the battlefield
  - Salvaging Station must be on the battlefield
  - Hangarback Walker must be in the graveyard
  - You control a nontoken noncreature artifact with mana value one or less.
[END OF COMBO PREREQUISITES]
assistant