Cryptic Trilobite + Together Forever + Arwen, Weaver of Hope

Cryptic Trilobite

Together Forever

Arwen, Weaver of Hope

How it works

1. Cast Cryptic Trilobite by paying 0, causing it to enter the battlefield with at least one +1/+1 counter on it due to Arwen.
2. Activate Together Forever by paying 1, targeting Cryptic Trilobite.
3. Activate Cryptic Trilobite by removing a +1/+1 counter from it, adding CC that can only be spent to activate abilities.
4. Repeat step 3 until Cryptic Trilobite dies as a state-based action due to having 0 toughness.
5. When Cryptic Trilobite dies, Together Forever triggers, returning Cryptic Trilobite from your graveyard to your hand.
6. Repeat.