You still need wizards to cast the spells..
Not if you’re claiming that the spells, once cast, automatically get exponentially spellier until they awaken into a spell god, capable of literally anything, including casting more complicated spells than any wizard is capable of. If that were true, you’d have no need for wizards. The fact that wizards are still around means it’s probably bullshit.
Not if your spells cast their own spells.