MAGIC SPELL IDEAS! :D

Hiyaaa!! I'm looking for some fun ideas for my datapack.
There are 11 elements in my magic datapack Arcana, each one with up to 10 upgradable spells of three different tiers or rarities: basic, advanced, and master. You can craft furled-up spell scrolls or find them as loot, and unfurling it gives you a random spell of its element and tier at a random level. Combine two identical spells of the same level to upgrade them (kind of similar to enchantments)!
Each element has 4 basic spells, 3 advanced spells, and 2-3 master spells.
I have most elements down, but if looking for ideas specifically for Blood, Lightning, and Void spells. Spells should have potential for different levels and upgrades, even if it amounts to "bigger numbers yayy". Any suggestions? :3