I think Hound's Tooth is broken

I was just fighting in fleet arena. I had breach on JKA and somehow taunt was cleared by Negotiator AoE. My HT is fully maxed (except useless reinforcement ability) and Bossk is fully relic 7, so it's not die to being underpowered, or missing an ability. It worked just fine last night. Today, not so much.

Edited for typos