Goblin Engineer, Crime Novelist, and Thornbite Staff

Prerequisites

• Goblin Engineer on the battlefield
• Crime Novelist on the battlefield
• Thornbite Staff on the battlefield
• available

Steps

1. Activate Goblin Engineer by paying , tapping it and sacrificing a nontoken artifact creature with mana value 3 or less, targeting another artifact creature with mana value 3 or less in your graveyard
2. When the artifact creature dies, Goblin Engineer and Crime Novelist triggers
3. Resolve the Goblin Engineer trigger, untapping it
4. Resolve the Crime Novelist trigger, putting a +1/+1 counter on it and adding
5. Resolve the Goblin Engineer ability, returning the targeted artifact creature from your graveyard to the battlefield
6. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers