Congratulations on finishing school haha
Here are some spells I made a week ago. This might inspire you. Currently I'm having problems with spell inspiration too
However, the spells you've made so far inspired me too. So I have to post this
Holy Sprites
Cooldown: 12 seconds.
Summons 8 holy sprites (faerie dragon missile) which turn around the caster for 1 second. After the second they will randomly target nearby friendly units and heal them for 30 - 45 hit points.
Whirling Axes
Cooldown: 6 seconds.
Creates 4 axes (rexxar missile) which turn around the caster for 1 second. After the second they will randomly target nearby enemy units and damage them for 80 damage. This ability works with Critical Strike too.
Judgement Strikes
Cooldown: passive.
Gives the hero a 10% chance to stun the target for 1 second, deal 60 bonus damage and blind the target for 6 seconds with every melee attack.
This only works with melee attacks against Undead and Demonic units.
Regrowth
Cooldown: 1 minute.
Gives live to all dead tree's in the area around the caster. There will also come roots around the caster that will protect him; increasing the caster's armor by 18 for 10 seconds.
Backdraft Blink
Cooldown: 10 seconds.
Blinks behind the target and attacks the target with a strong melee hit. Deals 80 damage and knockbacks the target. If the target has under 25% hit points this attack's damage will be doubled.
Confusing Image
Cooldown: 30 seconds.
Creates fake images from all units in the targetted area. Whenever an image get's damage, his real form will take the same amount of damage. The images will be under the caster's control, can't deal damage and will last for 8 seconds. Images will only attack their real side and won't take orders.