Help with WeakAuras

Hi Warmane,
I'm trying to set up WeakAuras 2 (the 3.3.5 backport found on these forums) to track cooldowns of arena1-3.

Edit: by "track cooldowns" I mean seeing when their abilities become usable again (e.g. time left before a mage can counterspell again) rather than the remaining duration of auras conferred by cooldowns.

But after many hours trying different things, watching youtube tutorials, etc., I just can't figure out how to do this.

I would really appreciate help with this.

Or some alternative way to do this...

https://imgur.com/dKWE9dT

Should be as simple as this.

Thanks for the reply, much appreciated.

I should have been more clear in my original post.

I am looking to track when their abilities will come off cooldown, rather than the remaining duration of cooldown-conferred buffs.