If a daily challenge doesn't suit you, you can reroll it to obtain a new one. You can do this once a day, by clicking the twin arrows icon on that particular challenge.
And yes, this mission is difficult, but the reward is impressive as well. It's your call whether you feel like you can take the challenge or not.
"Stunning!" daily quest
By GreenEmerald#2772 February 06, 2017, 05:35:10There is a daily quest called "Stunning!" which rewards you with a Gold Pack for 5 consecutive victories. I don't mind a challenging quest when they give a good reward, but this quest is way too much for a daily quest. I've been struck with this quest for 2 weeks now, as the 5th challenger always seems to be grossly overranked. There is no real progress in doing these kind of quests, and they just become frustrating.
I know that you can always recycle these quests for something smaller, but saying no to Gold Packs as a new player (or someone who plays f2p) is like a kick in the groin. I would suggest changing the quest to something as challenging, but with some kind of progress (like 10-20 victories). These are daily quests afterall, not achievements. We already have an achievement called "Incredible" which require exactly the same 5 consecutive victories.

Well you can just keep the quest, since you can hold 3 at a time, just pretend it's an unfinished achievement.
If a daily challenge doesn't suit you, you can reroll it to obtain a new one. You can do this once a day, by clicking the twin arrows icon on that particular challenge.
And yes, this mission is difficult, but the reward is impressive as well. It's your call whether you feel like you can take the challenge or not.
It is frustrating to lose when you are so close, but the reward is more than worth the trouble. I consider it like an epic daily
Or you can just have this situation...
https://youtu.be/h3FQ5uGRdiI
People are afraid of Iops I guess xD
I'm not very good at this game but I want to brag that I've gotten this quest like 5 times in the past two weeks and I've finished all 5 on the first attempt. Uh oh, did I just jinx myself?! Anyway 4 of the 5 packs gave duplicate Infinites so it was more like a crafting bonus quest -.-
by the way I openly admit that I was lucky every single time I managed to finish this quest
the reward is good for this chall. you've just made Eca God angry