Ghave, Guru of Spores + Geralf's Messenger + Cryptic Trilobite

Ghave, Guru of Spores

Geralf's Messenger

Cryptic Trilobite

How it works

1. Activate Ghave's second ability by paying 1 and sacrificing Geralf's Messenger.
2. Geralf's Messenger's undying ability triggers, returning Geralf's Messenger from your graveyard to the battlefield with a +1/+1 counter on it.
3. Geralf's Messenger enters the battlefield tapped, causing an opponent to lose 2 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 Geralf's Messenger, creating a 1/1 Saproling creature token.
7. Repeat.