Carnage, Crimson Chaos + Saffi Eriksdotter + Phyrexian Altar

Carnage, Crimson Chaos

Saffi Eriksdotter

Phyrexian Altar

How it works

1. Cast Carnage by paying 2.
2. When Carnage enters, it triggers, returning Saffi from your graveyard to the battlefield.
3. Activate Saffi by sacrificing it, targeting Carnage.
4. Activate Phyrexian Altar by sacrificing Carnage.
5. When Carnage dies, Saffi triggers, returning Carnage from your graveyard to the battlefield.
6. When Carnage enters, it triggers, returning Saffi from your graveyard to the battlefield.
7. Resolve the Phyrexian Altar ability.
8. Repeat from step 3.