Name: Spell Tiers
Version: 1.1
Version History:
1.1 - Completely rewritten with less and lighter code. Removed Tier limit of 8. Tiers are limitless now. Also removed battle system overwriting.
Features:
Instead of having unlimited skills this script will limit your class. You can set any number of tiers for your class. Each tier consists of up to 3 individual skills.
Screenshots:
Spoiler

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Instructions:
Set <Max Tier: X> in classes Note boxes to set the highest tier they can have.
Set <Tier: X> in spell's Note box to set tier of that spell.
Script: <Link: Pastebin>
Blog: <Link: On blog>