Quote Originally Posted by danielxcutter View Post
Having a caster level is not the same as being able to cast spells to be fair. If you’ve blown all your slots you have a caster level but can’t cast.
But...
https://www.d20srd.org/srd/monsters/lich.htm
Each lich must make its own phylactery, which requires the Craft Wondrous Item feat. The character must be able to cast spells...