The hardest part is getting the 30 Diamonds, once you do that there is a bot somewhere that will kill the red dragon and the other couple of bosses to get the tokens.
I use full luck on my ArchFiend, but I'm sure some Wiz enhances would help a bit.
I mostly use the class for things such as Mana Golem because you can open the fight with the nuke that makes everyone do +75% damage (he will die so fast the 75% debuff won't have time to wear off) then as soon as the boss dies, switch classes and switch back to reset the 50 second cooldown. That gives you +75% damage 100% of the time for your whole team.