In Season 4 of Diablo 3 we were introduced to a number of achievements with the wording "Reach Greater Rift" x "without the bonuses of any of the following Class sets."
Alone tonight is Greater Rift 15 achievement.
Some have reported that it is possible to get the achievement with a 2 set bonus while others report a 4 set is ok yet I have been unable to reproduce their results.
What is the actual minimum requirement to trigger these achievements?
Best Answer
I have not attempted this myself, but people are reporting that you are not allowed to have any set bonus from sets listed.
That means you can wear at most 1 piece from each of those 24 sets (there are some very useful single pieces there, like those that give +45-60% to skill damage).
All other sets are fair game - Chantodo's, Bul-Kathos', Bastions of Will, Endless Walk, crafted sets.
There is also a bug that allows to grab those Achievements and a Conquest easily. Set items do not provide bonuses to a lifeless corpse, so you just need to die right before your damage over time effects to finish off the Rift Guardian.