Heart of Phoenix

For last month iv been trying to play some 2s arenas on my bm hunter! I macroed Heart of Phoenix into many spells and made a separate bind for it to but no mather what i do it never works in arena! When not in arena it works "sometimes" . Does anyone know anything that can help me cuz playing feroicity pet feels usseles without that tallent.

Maybe just not play bm in arenas? Like go survival or marksman? I don't know if bm is good actually.

"Abilities with a cooldown longer than 8 minutes cannot be used during Arena combat (including Rebirth)."

Since Heart of the Phoenix got 8 min cd, you can't use it on arenas.