Ghave, Guru of Spores + Cryptic Trilobite + Strangleroot Geist + Corpse Knight

Ghave, Guru of Spores

Cryptic Trilobite

Strangleroot Geist

Corpse Knight

How it works

1. Activate Ghave's second ability by paying 1 and sacrificing Strangleroot Geist.
2. Strangleroot Geist's undying ability triggers, returning Strangleroot Geist from your graveyard to the battlefield with a +1/+1 counter on it.
3. Strangleroot Geist enters the battlefield triggering Corpse Knight, causing each opponent to lose 1 life.
4. Resolve the Ghave ability, putting a +1/+1 counter on Cryptic Trilobite.
5. Activate Cryptic Trilobite by removing a +1/+1 counter from it, adding CC that can only be spent to activate abilities.
6. Activate Ghave's first ability by paying 1 and removing a +1/+1 counter from Strangleroot Geist, creating a 1/1 Saproling creature token.
7. The Saproling token enters the battlfield triggering Corpse Knight, causing each opponent to lose 1 life.
8. Repeat.