NPC Spell resists.
 

I am not sure how the spell resist is coded, but it is extremely screwed up when it comes to the root spell. At level 60 i am constantly getting rooted by frogs in lower guk, that are in some cases 25 levels lower. On top of that i am noticing blue and even some green mobs resisting my spells, and not just 1 or 2 but sometimes 3 or 4 times in a row. Spell resists are terrible atm. No mob 10 levels lower should be landing spells on players like they do. Hell a level 10 mob can still land ice nukes for full damage on a level 60...but yet a level 20 player cant seem to land spells on a level 15 npc without being resisted to all hell.

Resolving due to age and no classic evidence posted.

I have seen old posts and log files of greens landing spells on high level toons, green death was a common thing even for melee.