The level 23 version of this set is Cain's Fate.
The set includes four items, three of which are required to complete it.
- 8% increased attack speed (2 pieces)
- 50% better chance of finding magical items and +50% experience (3 items).
The last property, while may sound useful, is actually not worth taking item slots in the endgame: the experience bonus is not multiplicative with the one for increased difficulty, and only 10% of the bearer's total Magic Find truly applies to Legendary/Set items.