Custom Spells and Skills

[someone2040]

How would I go about making a custom skill or spell? I dont mean just making some custom one based on a previous spell.

Take this for example.
I have a spell called "Slayers Oath"
I want this spell to increase attack speed and strength of the hero for each level.
I base the skill off bloodlust, as I want it to be cast, and it already has increased attack speed. How then, would I get it to also add strength per level?

 

[1cRaZyFooL]

I think there is a trigger that lets you add strength to your hero but I can't get on World Editor right now so I can not exaclty what it is.

 

[someone2040]

Thanx for that, managed to sort out the addition to strength thing kindve.
I did it like this.

Event Unit learns Ability
Condition Level of Slayers Oath equal to 1
Action set (variable) to 4
etc for the 3 levels of it

Then for when it is cast

Event unit finishes casting ability
Condition Ability equal to Slayer Strength
Action Modify Strength of Casting Unit : Add (variable)

Now my problem is, It actually changes the strength. I want it to appear beside the strength as an addon. Also, how would I go about creating a trigger for when the buff ends, that the strength is removed?

 

[Mind]

You don't need to use triggers. Simply use an ability based on "Attribute Bonus" and modify the data values.

 

[someone2040]

That's not as useful to me.
I want the spell to add strength AND increase attack speed. Now Bloodlust already has increased attack speed, and it has the effect I want on the character. It'd make logical sense to base it off bloodlust to me...
Attribute bonus only has increased strength in it, not attack speed or scaling or effect on model.

I think I read somewhere about invisible casters though. Something along the lines of, when casting Ability, create invisible caster at location of caster. Inivisble caster casts Strength Plus (Customized Attribute Bonus) then destroys itself, so it gives the effect of both spells, yet it appears as if only one is cast.
I could be wrong about seeing that somewhere though.

 

[someone2040]

Anybody?
I figure I want it to work like this, but cant work out the triggers.

Event : A unit finishes casting an ability
Condition : Ability is equal to Slayers Oath
Actions : Create 1 Invisible Caster at Triggering Unit facing Triggering unit

From there, I cant work out how to do these things

Level of Strength Plus on Invisible Caster is equal to level of Slayer Strength on triggering unit.

Invisible Caster casts Strength Plus on Triggering unit

So yeha, that's what I need, I can already figure killing the inivisible caster is something along these lines.

Event: Unit finishes Ability
Condition : Ability equals Strength Plus
Actions : Destroy triggering unit.