I've got all 6 unlocked now, but no Merlin the Imp for all 7. I read a post where someone said they use it for farming. this would be the ultimate set to test your crafting skills on. 3 spaces on all items are the Set, Bonus, and Curse. no way to make Mythic 7 Deadly Sins items. and some of the other affixes can't be rolled, so it is a choice to keep them or replace with something that can be rolled.