Yenna, Redtooth Regent + Ashnod's Altar + Enchanted Evening + Little Bear

Yenna, Redtooth Regent

Ashnod's Altar

Enchanted Evening

Little Bear

How it works

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