read it carefully, you are doing something wrong

i have read it carefully, it says and this is right from it, equip 4 champions with three 3* or higher artifact sets of level 8, i have that...i even farmed a full 3 star set and it still did not count

Can  you  post  a  screen  shot  of  your  challenge?

Ty, and can you post screens of your champions as well? Sorry I should have asked last time. 

there are all the champions i have sets on, life steal, hp,attack and retaliation

Well damn, lemme ask around. 

did i do something wrong or something? i mean those are 4 sets, each 8+ on 4 different champions, why aint the challange completing for me

No, it looks fine to me. My first though is maybe those white boots are bugging out? And maybe the green chest, that's the only difference between from the other 3.

i will try to replace them but im not sure if i have anything above green

Ok so I have an asnwer, they need to be sets of 2 each. Like your Shaman and Maiden.  These  count.  

Your cannoness is wearing Relentless which requires 4 pieces for one set. As does the set on your Rowan and Athel.  These  do  not  count

Oh so they have to be 4 pieces of a set to count?

im confused now more

But if i get what your saying, if it says it needs 4 pieces for a set, if i only have those 4 pieces on it should count?

No, you need the ones that say 2 pieces to a set. Sorry for confusion

ok. i just looked up some things with what you said (cuase i was confused). If it says it needs 4 pieces to be a set, if i only equip those 4 pieces will it count as set i have equiped?

U need to equip sets that only need 2 pieces.  So if u see 3 icons under your [set info] then it counts credit.  Ie you madien and shaman atm

to expand on what marsearth said, you can only use two piece sets for that specific challenge. equipping a four piece set won't work because in order to consider a set equipped, you need to earn the set bonus from it. a four piece set like retaliation or lifesteal wont work because it only gives you a set bonus after four pieces, leaving only two equipment slots open. even if you equip a two piece set like offense or perception, you'll still only have a total of two set bonuses, not enough to count towards the mission.

Oh, so as long as i use 2 pieces from a 2 piece set it will count? can the champion be common or does ir have to be a rare champion or does that matter