The spell reflectors are broken in more than one way on Classic WoW. Firstly, the ice reflector could reflect hunters freezing trap back on them, evidenced by this clip from retail vanilla WoW. On Classic, it only immunes the traps.
ht tps://www.youtube. com/watch?v=VX7RuUcd-3Q&feature=youtu.be&t=505
Secondly, It should immune you to any frost spells that aren’t reflectable, namely frost nova and cone of cold, which is really the big reason anyone would run a trinket like this anyway. They don’t do anything at all in this scenario. Here is an explanation from thottbot posted around 2006.
"This is how these work. Any spell that is a single target spell hitting you will bounce back to the caster. That means frostbolt, frost shock, Icy enchants, and hunter’s freezing traps (for example).
Anything that is a frost AoE will not bounce back, but you will be immune. This means frost nova, Cone of Cold, Blizzard, etc. So if a mage frost novas while i have this active, I will be immune, but it won’t root the mage. However, if he frostbolts me, it will bounce off of me, hit him, damage him, and snare him."
Here is the link to the quote -
ht tps://web.archive.org/web/20070314190233/htt p://www.thottbot. com/ i18634
Thanks to Reddit user FR143 for the sources. Frost mage is already by far the best PvP class in the game, and its one weakness that melee can take advantage of doesn’t work properly at all. Please make these trinkets function correctly, as they’re one of the biggest items that you can craft with engineering, and pivotal to a working PvP meta.