Custom combat engine?

For some reason I can't seem to get my combat engine to work like the built in one. so i'm gonna start over from a blank map.

I'm hopeing some people can give me some ideas on how to do this.
I want it to work like the built in one were if a player is out of range unit will move to attack, stop attacking exactly when the unit its attacking dies, allowing it to properly show death animation, etc.

The reason I need a custom combat engine is so I can script in certain things like dodge, parry, crits, miss, etc. Reason for this is cuz certain things can only be done after certain things, for example one spell can not be cast unless the hero dodges an attack.

detect on damage, refund life then activeate?

No, It will use a spell based off of channel for attacking

He means that FIRST you dodge the attack, either manually or with evasion, then you MANUALLY cast the spell within a short time of dodging.
I bet I can guess what it's called. Riposte?

yea.