icy chill enchant only worked briefly in Van WoW, was instantly stealth hot fixed to broken. once had a 6ppm frost damage and a slow that was 1-2ppm. druids having it was like them having infected wounds slow that came in CATA. alot of enchants were ganked from all druids at the time such as crusader and LS, was a reaction to QQ on feral druids ironically alot was from rogues
in BC on a patch 2.3.2: Icy Chill Enchant: The triggered effect from this enchantment will now cause a melee slow and movement snare as intended.
our guild tested using rogues, wars, shams, paladins, and hunters melee wpns. it never got a slow and frost damage was like 1-2ppm. we did en masse GM tickets, predom two responses: works as intended or report the issue as a bug. it was never fixed, people ask about it and bring it up occasionally
when twinking started the BG brackets were different, the first bracket was 11-20. there was alot of QQ concerning level 20 abilities being game breaking vs 11-19 players. the brackets were redone 11-19 with the rest x0-x9. except AV which was 51-60. 10-19 was later in Van WoW or BC
if icy chill enchant worked it would be mandatory