Lonis, Genetics Expert, Clan Crafter, Krark-Clan Ironworks, and Worldwalker Helm

Prerequisites

• Lonis, Genetics Expert on the battlefield
• Clan Crafter on the battlefield
• Krark-Clan Ironworks on the battlefield
• Worldwalker Helm on the battlefield
• You control at least one additional artifact available

Steps

1. Activate Lonis by paying and sacrificing another artifact
2. If the artifact was a Clue, Lonis' third ability triggers, putting a +1/+1 counter on any other creature you control
3. Resolve the Lonis ability, putting a +1/+1 counter on it and causing you to draw a card
4. Lonis' second ability triggers, creating a Clue and a Map artifact token
5. Activate Krark-Clan Ironworks by sacrificing the Map or Clue, adding
6. If the artifact was a Clue, Lonis' third ability triggers, putting a +1/+1 counter on any other creature you control
7. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite +1/+1 counters