Lightning Breath Ability (help)

[JAYZORZ]

Hey guys, and thanks in advance.
I am making a custom empire builder, and it's going well so far although I have hit a bump in the road.
I've created a hydra hero for the undead that specializes in breath attacks.
So far he has:
- fire blast (pretty much breath of fire, just without drunken haze and with slightly more range)
-poisonous breath (frost breath with disease cloud and for heroes)

I want to create his ultimate move now, lightning breath- but I am unsure as to how to create this.

I want him to stand and shoot a lightning beam (much like chain lightning) straight in a line of range 1000 and damage all units that are standing on it every by 50 hp.
Also, anyone have any ideas for another skill
Can anyone help? I'll check again tomorrow as it's nearly midnight here and i might go
Thanks
JAYZORZ

 

[baassee]

Is this meant to be periodic or just instant? Else you can go Carrion Swarm.

 

[JAYZORZ]

Sorry for the delay, Nah, I want him to stand and channel it for like 20 seconds, hurting everything that stays on it for 50 damage every second. Thanks.

 

[Erkki2]

I'm not really sure what kind of ability you had in mind, but this is how i understood it. If you meant something else, try to give a more detailed description.
For skill idea:
3-headed attack
passive skill, which gives a chance to cast 3 waves when attacking

c = caster
t = target
|/ \ = wave attacks

       c
     / t \
    /  |  \         
   /   |   \

 

[kleinerhauck]

You can use this function to pick all units in front of the hero to damage them (periodic time event).
Just turn that trigger on when the hero starts channeling and off when he stops and save his origin (point) for the periodic trigger (best in a hashtable to make it MUI)

 

[JAYZORZ]

Thanks guys, My laptop broke but yeh. Sounds good erkki. + rep

Err after looking again, I was wondering if there was an easier way and erkki, not qutie what I wanted- though this is because of my lack of in depth explaination no doubt-

Simply put

I want my custom hero to have an ultimate ability that shoots a shockwave every second for 20 seconds.

 

[Erkki2]

What should a shockwave look like? A lightning effect/ farseer missile/ some custom electric wave/ a beam of projectiles?