Hello,
I believe there may be a bug with the Signet of the Priory trinket. According to its tooltip, the “Use” effect should increase your highest secondary stat by a large amount for 20 seconds.
On my character (Level 80 Destruction Warlock, ilvl 714), my highest secondary stat is Mastery (62%), which is significantly higher than Crit (36%) and Haste (28%).
However, when I activate the trinket, instead of increasing Mastery, it increases Haste. This does not match the tooltip description.
Anyone else had this issue?