Some things take time. If you don't want to grind, then you don't get the rewards. This game gets very frustrating and takes a lot of patience; unless you buy your way to victory. that is just the nature of these types of games.
If you don't like it, then you picked the wrong game.
DEVELOPERS: For the sake of everyone who actually made an effort and completed these missions, PLEASE do not change them.





May be they really have problems with the artifact challenges in general. I refer on the challenges 9.6 to 9.8. I should equip 2 and more champions with Three 5 or 6 * artifact sets. I did this long time ago, but the system just doesn‘t realize it. I have equipped all my 6 champions with artifacts 5 and 6 * and with level 12 and higher, but this isn‘t shown in the results of the challenge. Bug?? Support tells me bullshit about it or nothing .