The slow/snare is called Kaggy's Curse, and although I haven't taken the mob out yet, the spell doesn't LOOK all that nasty. I'll update when I kill him. It only has 9 poison counters, so a single cast of virtually any 40+ anti-poison spell should clean it up.
Edit: The Snare/Slow is only annoying. As a mage, my lowest level pet heal strips it in a single cast. He does spam cast it, but that's kind of irrelevant to me as a mage, as I spent a fair deal of the fight healing my pet with my big heal. This guy is no slouch. He seemed to mitigate spell damage a lot - he only outright resisted my first Malosinise, but he did not seem to be taking full damage from many of my fire nukes.
Used roughly half my mana bar, pet lay of hands, swarm pets, drake pet. He enrages at 10% like most of the fabled mobs I've seen this year. He never tried to run, but seemed to hit my pet reasonably hard and/or fast, and has a fair deal of HP. Use caution, but he should be easily doable by a balanced group in their 60s.
The only real problem I had was getting him to spawn. Nothing ever popped at his location (which is accurately described on a few posts as being roughly -780, -1280, which is upstairs in the Froglok city, on the northernmost section, west side) except him for the six and a half hours I sat there. I got very discouraged, switched to my ranger for tracking (already in the same zone) and found him within 3 seconds.
Edited, Mar 24th 2007 9:28pm by nyteshayd
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Jiriki Sa`Onserei, 120/67k AA Wood Elf Ranger Anadriel Starfire, 120/46k AA High Elf Mage