The Necromancers pet casted buffs I.E Proficiency of Pain (Level 9 Painworking) and the Base Deathsight Dex buff will cancel eachother as the buff button is pressed so if I spam both for example the pets hands will start lighting up and he will try and cast whatever the last buff that was pressed instead of a "Que"
Easy to replicate..
Use the level 9 Pet Str/con and the pet casted Base dex and spam them back and forth.. and watch the pet freak out.