As mentioned, you can pull around Fabled Krziik without much difficulty. No lull needed, just make certain not to pull anything from behind Krziik and he won't assist. Everything else in the room (including Fabled Overlord) paths up front eventually.
I spent 7 hours straight killing PH's last week with no spawn, came back again today and spent 8.5 hours straight killing PH's before he FINALLY spawned. Now I was expecting a fight similar to the swarm pet weapon Fabled's, I was wrong... I pulled with bard slow then faded agro and tagged with Pally. lvl 76 Pally 3.5k AC 20k hp's lasted about 3 seconds. Mercs didn't even get a heal off. Gated cleric out then clickied back to campfire to rez the rest. Scrolled up to find that this guy was hitting for 6.3k and at a pretty good rate even after slow. After rezzing and rebuffing, switched Pally to defensive gear, IE Shield/1hnder and powersource for added AC. Sitting at 20k hp's 3.7k AC now, I also dropped my Cleric out of group and popped a 3rd cleric merc. All 3 cleric mercs on Reactive, plus my Cleric outside of group to spam heals. Did same thing, pulled with Bard slow (took 4 trys before it landed) then faded agro and tagged with Pally again. This time I popped deflection disc soon as he got to me. Started chain casting stuns to build agro while putting HoT and a Promised Renewal on with cleric. Got bard beating on him and singing Melody (haste, overhaste, slow, dd proc). Soon as deflection disc dropped I popped guard disc. Spamming heals constantly with my cleric, my hp's were like a ping pong ball bouncing from <20 up to full and right back down again. Popped increase crit/dd AA's on Wizzy and started her Nuke hotkey. Then continued to chain cast stun so she didn't pull agro. When he was down to about 50% I popped all bards offensive discs to up our DPS. Wizzy ran OOM with him still at 20% life, wasn't looking good. Some how I pulled it off though, no one ever pulled agro and Bard and Pally were able to finish him off. ALL 3 Cleric mercs and my cleric were sitting between 0-10% mana when he died.
After the fight I looked at my parser and this guy hits for closer to 7k... His MAX hit on me was 6899, Average hit was just under 4k. He had little over 2.5k DPS on me. Parsed in at 210k hp's. He does Enrage at 9% life, no Rampage. Don't let his lack of HP's fool you, he is no pushover with his high DPS. How I pulled it off 4 boxing 76 Pally/Bard/Cleric/Wizzy (and 3 Tier 2 Journeyman healer mercs) is beyond me, but after a total of 15.5 hours camping this guy I am one happy Pally :) Also he dropped 1 each of the Fabled and Non fabled AE sword.