Yenna, Redtooth Regent + Ashnod's Altar + Jump Scare + Breaching Hippocamp

Yenna, Redtooth Regent

Ashnod's Altar

Jump Scare

Breaching Hippocamp

How it works

1. Cast Jump Scare by paying , targeting Breaching Hippocamp.
2. Activate Yenna by paying 2 and tapping it, creating a token copy of Breaching Hippocamp.
3. When the Breaching Hippocamp token enters, it triggers, untapping Yenna.
4. Activate Ashnod's Altar by sacrificing the Breaching Hippocamp token, adding CC.
5. Repeat from step 2.