[Lowako]

Ixiblat isn't really a bottleneck mob. The quest NPC to spawn him is up super frequently. You should be able to walk over to BW and dunk him whenever you want. There's a small chance that you'll run into someone else (like anything in EverQuest) but if someone else is already there the respawn time is roughly an hour (mob pops at a certain in game time, I think 72 minutes is how long an in game day lasts) so it should only be a relatively minor inconvenience.

I can help you kill this on my rogue if you PM me beforehand as I don't really log into the game anymore. In an absolute worst case scenario I have the sceptre from ixiblat on my necro and I can MQ it to you for free. You shouldn't have any trouble spawning/killing ixiblat on your own though.

EDIT: I just noticed you have no force ready to kill ixi. Thankfully hes not too huge of a threat. I'd find a warrior with defensive(a well geared monk also works), a shaman, and a few DPS. A druid can also be nice for extra safety to snare Ixiblat and any potential charmed pets. Ideally you'd kite ixiblat until hes slowed, have the shaman zone out their aggro, then have the warrior pick it up and kill it. DS potions are effective on this mob. If you lack an enchanter, you can have one person melee ixiblat with tash sticks to get him tashed. He regens enough that he won't summon. Necromancers, Enchanters, and people with puppet strings can charm Slixin Klex for a lot of extra DPS. You should be totally fine with just Sinister Slix for DPS, assuming the tank uses DS potions. If no charmed pet, 1-2 buffed rogues worth of DPS should suffice.