Read again:<br/><br/><div class="quoteheader"><div class="topslice_quote">Quote</div></div><blockquote class="bbc_standard_quote">Magic Immunity (Ex)<br/><br/><strong>Demiliches are immune to all magical and supernatural effects</strong>, except as follows. A shatter spell affects a demilich as if it were a crystalline creature, but deals half the damage normally indicated. A dispel evil spell deals 3d6 points of damage (Fort save for half damage). Holy smite spells affect demiliches normally. </blockquote><div class="quotefooter"><div class="botslice_quote"></div></div><br/>And as I said in my previous post, comparing the 3.5 update booklets for the Epic Level Handbook and other old 3.0 products that got updated shows that they deliberately kept this version of Magic Immunity for Epic Monsters.<br/><br/>Admittedly, Demilich isn't completely invincible.  It's just that, with regeneration and undead traits, she only takes damage from Dispel Evil, Holy Smite, and Good-aligned weapons, and she's got Harm at-will for self-healing.  The best option for taking her out in a straight fight would be a small army of Clerics, Angels, and that 'properly geared and prepared Paladin/Warrior type' you mentioned.