I had no idea these things even existed! I was quite flabbergasted I got one from a Court of Farondis emissary quest. Ward of Infinite Fury, which, if I understand Wowhead correctly, is not even supposed to drop from emissary caches? This is how surprised I was:
First I saw the orange text and thought it was another legendary, which I really have no desire for. Furthermore, I never have champions with me when questing. When I originally created my warlock back in vanilla it was because I wanted a pet class, hunter seemed too complicated, and I also wanted to play a gnome. Lock pets are more minions than pets, so they they do not require any care really. Before I get animal rights activists on me, minions are demons, and should be handled accordingly. But I digress…
With time I sort of got a bit tired with pets, so, for example, I have talented away pets on frost mage and MM hunter. I really like that play-style. I only tried questing with champion once, on my lock, but that was just meh and a pixel-annoyance. But with this new legendary thingie, Wisteria insists I prepare one of her champions for help with the patrolling. I do as I am told. Do not mess with druids.