basically a suicider distracts all of the kings so you can get in without getting prime and supreme on you, once he has them distracted he pms or says on clan chat "go" and then you climb down ladder and run along south edge to far most east( i think east) part of the lair. then whenever rex gets close, just mage him and lure him to the safespot. i've never gone solo, bu that's how you do it with a suicider.