Scrap Trawler, Krark-Clan Ironworks, Salvaging Station, and Walking Ballista

Prerequisites

• Scrap Trawler on the battlefield
• Krark-Clan Ironworks on the battlefield
• Salvaging Station on the battlefield
• Walking Ballista in the graveyard
• You control a nontoken noncreature artifact with mana value one or less

Steps

1. Activate Krark-Clan Ironworks by sacrificing the nontoken noncreature artifact, adding
2. Scrap Trawler triggers, returning Walking Ballista 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 Walking Ballista by paying
5. Walking Ballista 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 Walking Ballista, and then remove infinite +1/+1 counters from it to deal infinite damage to any target(s)

Results

• Infinite +1/+1 counters on Walking Ballista
• Infinite colorless mana
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count