Spells: Resists don't seem fixed at all

[Cribanox]

level 51 druid, trying to just kite singles in burning wood and skyfire. The mobs are level 39-44 and I cant land one single immolate. I've tryed probably 10+ casts of this spell. Drifting death seems to work but will get a few resists (I've used conjuration dots my entire druid career here and have NEVER had a swarm dot get any resists until recently).

I can play in dreadlands at level 51 pretty normal but it's mostly light blues (or dark blues that are on the verge of being a light blue). It's incredibly frustrating when ther is a zone full of dark blues that I can barely root / dot or snare / dot, when I should be quad kiting.