Color Spray

Close-quarters spell
Cyclic (cast once per battle OR at-will when the escalation die is even)
Target: 
1d4 nearby enemies in a group
Attack: 
Intelligence + Level vs. MD
Hit: 
2d8 psychic damage, and if the target has 10 hp or fewer after the damage, it is weakened until the end of your next turn.
3rd Level Spell: 
4d6 damage, 20 hp or fewer.
5th Level Spell: 
6d8 damage, 30 hp or fewer.
7th Level Spell: 
10d6 damage, 40 hp or fewer.
9th Level Spell: 
10d12 damage, 60 hp or fewer.
Adventurer Feat: 

Increase the hit point threshold of the weakened effect by 5 hp.

Champion Feat: 

On a miss, the spell deals damage equal to your level.

Epic Feat: 

The spell now targets 1d4 + 1 nearby enemies in a group.