"Creating a Lich: A lich can be any type of spellcaster, as long as it has the ability to perform a ritual of undeath as the primary caster (which can usually be performed only by a spellcaster capable of casting 6th-level spells)."
"Drain Phylactery: The lich taps into its phylactery’s power to cast any arcane spell up to the highest level the lich can cast, even if the spell being cast is not one of the lich’s prepared spells."
So by RAW, a Druid, Cleric, or Bard can become a Lich.
Then once per day they can cast an ARCANE spell of maximum level, even though they don't normally cast arcane spells at all.
That's pretty powerful and versatile. Wondering if it was a mistake.
Should the Drain Phylactery spell actually allow the Lich to cast any one spell of up to the maximum level that they can cast which is drawn from their primary casting spell list (either Arcane, Divine, Occult, or Primal)
?