Golganneth's Tempest [inactive]
With this anomaly active, the Tavern can not be frozen manually but it will be frozen at the end of every turn, automatically.
Banned heroes: A. F. Kay, Captain Eudora, Dinotamer Brann, Elise Starseeker, Forest Warden Omu, Fungalmancer Flurgl, Galakrond, Kurtrus Ashfallen, Ozumat, Maiev Shadowsong, Scabbs Cutterbutter, Silas Darkmoon, Overlord Saurfang, Professor Putricide, The Rat King, Xyrella, Yogg-Saron, and Y'Shaarj.