Enter the Void (3.5e Epic Spell)
From D&D Wiki
|Casting time:||1 Round|
|Saving Throw:||Fortitude negates (harmless)|
|Spell Resistance:||Yes (harmless)|
|To Develop:||396,000 GP, 15,840 XP cost, Seed: Transform (+21 DC), Factors: Change type to construct (+5 DC), Increase HD to 57 (+84 DC), Gain Blindsight 300 ft, Disintegrating touch, construct traits, fast healing 10, planar travel, SR 44, Vortex attack, and resistance 30 to all energy attacks (+120 DC), Cast spell when under 57 HD (Ad hoc, plus 100 DC) No verbal or somatic components (+4 DC) Reduce casting time to one round (+10 DC), Mitigating factors: Burn 20,000 XP ( -200 DC), Expensive material component (-100 DC)|
As you crush the black diamond in your hand, the dust of the gem begins to spread, quickly enveloping your entire body. For a moment only, you feel greatly weakened, but soon feel the sweet nothingness that you had longed for for so long. Seeing your foe, you remind yourself of his need for this wonderful nothingness that you are so blessed as to feel; you rush towards him with a cackle that only you can hear.
This mighty spell permanently transforms its caster into an Umbral Blot (See ELH). The caster retains their own basic shape, although they appear to be composed of absolute void. The caster gains all of the extraordinary and supernatural abilities of the umbral blot, and can still cast spells without verbal, somatic, material, or focus components. This spell is greatly taxing on the caster's mind, and he must make a will save (DC 35) or become permanently insane.
Material Component: A black diamond, collected from the Negative Energy Plane, worth at least 500,000 GP.
XP Cost: 20,000