Hi
This objective is killing me : Complete local events with mastery in escalating nightmares .
What does it even mean ? how do i get mastery in escalating nightmares ? i have done events in escalating nightmares that did nothing i do have 2/5 in that objective but i dunno when i got them or what i did to get it , i have been on youtube and did the events outside the garrotto doungen as someone suggestet but that did nothing and i startet a escalating nightmare doungion and then went to the Garrotto and did the events that just closet my escalating nightmare doungion so i wastset a sigel i understand its har to communicate but how about explaining what the deal is about or maby frace the quest in simple terms someone plz explain to me what this season quest mean what i gotta do course Blizzard cant they are way to sofisticatet to do that
Assuming your talking about “chapter 3” of the season journey. 
Its simple, do “events” when your running an escalating dungeon, 
complete the escalating dungeon 
, if your not completing the escalating dungeon, it wont give you a tick for completion.
You might have to do a few escalating dungeons, if you fail getting mastery in an event.
Mastery in an event requires you you to full fill task within time, eg, kill 5 waves in-time
it is non-timed unlike the one you will encounter later in your chapter journey 
So, dont rush the dungeons, just examine all corners. 
Thanks guys as i mentiont first i did do events in escalating nightmares and i always complete them cousre of the big loot boss at the end , i now tryed again and yes i got a tic in the event, i must have done somthing wrong the first time witch led me down a wrong patch , why are they calling it : with mastery in nightmares that very confusing why not call it : while during escalating nightmares ! anyways cheers thx for responce