New dark spell: Crazy spell (name needs some work)

Hello fellow Clashers

I have an idea about a new dark spell, called the Crazy spell. It works in essence similar to the haste spell, but instead of increasing movement speed, this one increases attack rate, allowing for slow hitters to get a lil speed in their punch.

Here is the (rough) maths:

lv 1: increases attack rate by .5 sec, spell duration is 5 sec.
lv 2: increases by .8 sec, spell duration is 7 sec
lv 3: increases by 1.0sec, spell duration is 8 sec

Please share your thoughts about my idea, coz I'd love to see this spell in action

I'm not sure if this would get much value