Mythic Spell

[BrainyJackdaw]

Just had this idea. Wouldn't it be cool if as a necromancer wizard I'd be also able to cast some of the Lich's spells even though I'm on a demon path? So, I'm here to ask if you could add a homebrew Mythic Feat that lets you pick one mythic spell from any mythic class and add it to your own spellbook. Why feat, because I think learning a single spell fits more a feat category than ability imho.