Yenna, Redtooth Regent + Ashnod's Altar + Enchanted Evening + Bounding Krasis

Yenna, Redtooth Regent

Ashnod's Altar

Enchanted Evening

Bounding Krasis

How it works

1. Activate Yenna by paying 2 and tapping it, creating a token copy of Bounding Krasis.
2. When the Bounding Krasis token enters, it triggers, untapping Yenna.
3. Activate Ashnod's Altar by sacrificing the Bounding Krasis token, adding CC.
4. Repeat.