Yenna, Redtooth Regent + Ashnod's Altar + Secret Arcade // Dusty Parlor + Corridor Monitor

Yenna, Redtooth Regent

Ashnod's Altar

Secret Arcade // Dusty Parlor

Corridor Monitor

How it works

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