I really need help here

Two question let start by the less important one.
Where is the vier token?

Second one? I try beat the even Illuminator the world.
I can't believe that even with every character in the list max out I cant achieve it even with tutorial. I seen a player make Kanon use triple attack skill. The problem is that I did't have that skill "Deternimed Justice" . It's seem it's comming from a gear "Knight of Justice's Garb".

I get no clue where to get it at all. Any help please?

I just discover recently that each stat can only increase once. So puttnig a guear that increase 50 another 40 and another 30 will not make +120 but just +50. So i ask myself few question here. Some skill said it increase some stat. Did it's same? once is increase using a skill that increase again will not add more? What about item? Like if I use a item that increase attack by 50% it will add up with the skill buf or???


Thanks you.