[Suggestion] PvP Challenges

The temporary league challenges are popular and get people grinding to get them.

Have PvP challenges in these new leagues as well and add a PvP totem.

It'd be a good way to get people queuing.

As for the actual challenges themselves: maybe get Leo to a certain level, kill x players of a class, like the Leo dailies but with the rewards of challenges.
Setting them up so they can't be cheesed too easily.

Could this be done? Has it been suggested before?

a pvp challenge sounds good to me. would love to see that in the future.