Currently Challenges give 1 XP for hero classes. That makes sense given that they are repeatable and can be easy to farm.
With patch 4.5 challenges are being completely revamped. Except, strangely, in terms of class hero XP. 
Despite the increased difficulty for every level that is unadjustable and the challenges being no longer repeatable. The plan is to keep class hero XP at 1 per battle.
I suggest that it be changed to 2 Hero class XP to balance properly for the increased time it will take to do challenges for most of the player base.
The only reasoning I can see for not increasing the XP is to further push the Class Trials in hopes that people use gems to gain Hero class XP rather than grind it. If thatâs the case. Then please simply state âdue to the gem economy and challenges being given extra rewards. We are not able to increase class hero XP at this time.â I suspect that was the actual reason class hero XP was taken out of the arena. Rather than, some âstuffâ about classes arenât used in the arena so you canât earn hero XP there. Despite heroes being required to use in the arena. If you use a hero class thatâs untraited, untalented and unleveled in any other game mode⌠You still gain hero class xp. 
I agree
I suggest using the OPâs proposal. - 2 EXP instead of 1 EXP.
Agreed. Itâs enough of a grind to get champion exp points as it is.
I agree as well. Thank you for 2 XP in Adventure Boards, hopes this follows suit. Looking forward to your response devs (and a âlikeâ on the OP 
)
Yep, Iâm going to be grouchier if thereâs no champion XP.
Youâre all so grumpy I almost donât want to tell you that the 4.5 challenges will now give 2 Champion/Class XP.
Youâre welcome. <3
Grumpy? I had a thank you & a smiley face in mine. Lol.
Thank you Salty! 
Thanks Salty.
And incase you didnât catch it last nightâŚI wasnât telling you to âask the PQ publisherâ I was saying that to Siplman. But I do apologise, I shouldâve said his name when addressing him.
Great steam otherwise! 
Thank you, @Salty. Youâre the best! 
Well if you keep telling me stuff like this I wonât be grumpy anymore 
Donât spoil the Burrito Golem pet yet though, I want that to be a surprise.
Still not a lot of options for leveling Hero classes. What about making 3 trophy pvp fights 3XP, 2 trophy 2XP, and 1 trophy 1XP. I know it may hurt a few that do 1 trophy, but it could help a lot more than it would hurt. I think this would be a reasonable change they could make.?
Why are you so Salty XP should be scalable with the difficulty 2xp then 3xp and on and on 