I think we are good
I think we can cut out the energy immunities, but leave him immune to disintegration.
That would turn the Draeden's immunities to...
Immunities: Ythog-Nthlei is immune to polymorphing, petrification, or any other attack that alters his form. Any shape-altering powers he might have work normally on himself. He is immune to mind-affecting effects (charms, compulsions, phantasms, patterns, and morale effects). His Beyond Nature and Beyond Time and Space abilities means Ythog-Nthlei cannot be affected by effects that imprison or banish him. Such effects include
banishment,
binding,
dimensional anchor,
dismissal,
imprisonment,
repulsion,
soul bind,
temporal stasis,
trap the soul, and turning and rebuking.
Ythog-Nthlei is not subject to energy drain, ability drain, or ability damage, disease and poison, stunning, paralysis, and death effects. Ythog-Nthlei is also immune to damage from disintegration.