Olivia's Attendants, Krark-Clan Ironworks, and Crime Novelist

Prerequisites

• Olivia's Attendants on the battlefield
• Krark-Clan Ironworks on the battlefield
• Crime Novelist on the battlefield

Steps

1. Activate Krark-Clan Ironworks by sacrificing another artifact, adding
2. Crime Novelist triggers, putting a +1/+1 counter on it and adding
3. Activate Olivia's Attendants by paying , dealing 1 damage to any target
4. Olivia's Attendants triggers, creating a Blood token
5. Repeat

Results

• Infinite damage
• Infinite +1/+1 counters on a creature