Found this bug by accident and almost didn't catch it. If you pop beastal wrath and mount right away, the pet disapears and keeps bw with whatever time it had left. In battlegrounds as soon as you res, use bw and mount. When you go to fight your pet will still have bw and you can probably use it again after it is done. It is late and i can't explain it too well so if some1 can rewrite this in an easier way to understand please do so.