Realm: Netherwing Sunwell trash

[Matick]

I know we have some time until Sunwell - but the trash mobs on classic were significantly made trivial by 5-10 frost mages spamming blizzard and kiting them - this allowed very easy and unintended Sunwell trash gold farms/GDKPs/etc.

I think making all trash mobs (in particular the ones before Kalecgos) immune to snares/slows would help solve the problem.