Frostpaw  

We had a very odd fight against him. Ranger tanking, bard dps/slow, and cleric for heals. The three of us spend 90% of our time playing together, and yet bard managed to pull agro from ranger several times, and then even the cleric did with nothing more than HoTs and PRs. Although the ranger was lagging, his taunts, snares, and melee were all hitting fine. No mem blur was cast by Frostpaw, and no emote went off indicating that either, but the whole fight progressed like Frostpaw would periodically mem blur to shuffle up the agro.

Excluding this, Frostpaw was no harder than other named in the zone - max hit around 3k, and missed a lot.