Quality of life mod.
I would absolutely love a mod that allows to craft spells where you can set the duration of the spell to 0, or nonexistent or whatever, just like most of the spells you can buy. Kind of like OG Oblivion mod "Instant Effects for Spellmaking and Enchantment" (https://www.nexusmods.com/oblivion/mods/49018).
When crafting spells, the lowest duration you can set for a spell is 1 sec, which functionally doesn't make a difference, as if your spell does 60pts of damage with duration 1 sec, it does 60 damage per second for one second, totalling in 60 pts of damage.
BUT unlike the spells with no duration, these 60pts of damage are evenly divided over the course of a second, meaning technically you can't instantly kill a target with a crafted spell. This means that if you hit an enemy with the killing spell with a shock 60 pts instant, you send the ragdoll flying in a cool badass way. But if you hit an enemy with the killing spell with shock 60 pts 1 sec, the enemy sorta slumps down when they die, no awesome getting thrown back.