So I don't play tremorcons. Couple of things which I'm not clear about though.
Did you consider a ghost ark instead of the doomsday ark? That might provide a bit more survivability to the troops. My concern is that without orb or phaeron you might find that you don't get enough shots away against a
cc unit and the warriors will get rolled and run off the board.
Rather than phylactery, perhaps a phase shifter? Actually I'd be inclined to dump the
CCB (

can't believe I said that) because a phaeron with orb would work much better to make the warrior squads more useful. You can use some of the spare points to add a couple more scarab bases ( if you have some) to cover the
AT side. Although, if you dump the
CCB for a phaeron lord, keep the doomsday ark.