Yenna, Redtooth Regent + Agatha's Soul Cauldron + Ashnod's Altar + Sky Hussar

Yenna, Redtooth Regent

Agatha's Soul Cauldron

Ashnod's Altar

Sky Hussar

How it works

1. Activate Sky Hussar using the Licid's ability by paying its activation cost, attaching Sky Hussar to Yenna and causing Sky Hussar to become an Aura.
2. Activate Yenna by paying 2 and tapping it, creating a token copy of Sky Hussar.
3. When the Sky Hussar token enters, it triggers, untapping all creatures you control
4. Activate Ashnod's Altar by sacrificing the Sky Hussar token, adding CC.
5. Repeat from step 2.

This fascinating loop transforms Sky Hussar into a recurring engine of creation and sacrifice, fueled by the mana-generating power of Ashnod's Altar. By using Agatha's Soul Cauldron to grant Sky Hussar's activated ability to creatures (along with the mana-fixing needed to cast or activate abilities), and copying it onto an Aura via Yenna, Redtooth Regent, every iteration forces the Sky Hussar token to enter the battlefield. That triggers its ability to untap all creatures you control, allowing you to sacrifice the token to Ashnod's Altar for colorless mana and repeat the process indefinitely.