Prerequisites
- Blowfly Infestation on the battlefield
- Nest of Scarabs on the battlefield
Steps
- Put a -1/-1 counter on any creature you control with toughness equal to one
- The creatue dies as a state-based action due to having zero toughness
- Nest of Scarabs and Blowfly Infestation trigger
- Resolve the Nest of Scarabs trigger, creating a creature token
- Resolve the Blowfly Infestation trigger, putting a -1/-1 counter on any creature you control with toughness equal to 1
- Repeat from step 2
Results
Required Cards 2

Blowfly Infestation
Enchantment

Nest of Scarabs
Enchantment