Saffi Eriksdotter + Fiendish Panda + Carrion Feeder

Saffi Eriksdotter

Fiendish Panda

Carrion Feeder

How it works

1. Activate Saffi by sacrificing it, targeting Fiendish Panda.
2. Activate Carrion Feeder by sacrificing Fiendish Panda.
3. When Fiendish Panda dies, its second ability and Saffi trigger.
4. Resolve the Saffi trigger, returning Fiendish Panda from your graveyard to the battlefield.
5. Resolve the Fiendish Panda trigger, returning Saffi from your graveyard to the battlefield.
6. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
7. Repeat.