Help with Abilitys (Blink Strike)

Ok guys i really ran into sumthing frustrating here perhaps one of you could help me. How is it you can add more things to an abilitys. For Example Blink strike on DotA adds dmg to the blink. Now for the Blink ability there is no slot for me to add damage. Do i Need a special tool for this??
if any of you could help me i would apreciate it much
-Carlos

You cant the base ability as blink. Its actually a spell based on stormbolt and a trigger where it teleports you, to the selected target.

Yes, the spell uses triggers to achieve it's full effect, which otherwise couldn't be achieved by just modifying an existing spell.

Dummy ability doesnt have to be a Storm Bolt. It could be a blink ability itself, unable to target 'ground' but only units and heroes, and then it calls actions via trigger. U dont have to be very smart to know this. Think rationally. But ofcourse that you can also use Storm Bolt dummy ability.

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Events
Unit - A unit Starts the effect of an ability

Conditions
(Ability being cast) Equal to Blink Strike/Modified Blink

Actions
Unit - Order (Casting unit) to Attack (Target unit of ability being cast)
Unit - Order (Casting unit) to damage (Target unit of ability being cast) for (30.00 x (Real((Level of Blink Strike for (Casting unit))) using attack type Normal and damage type Normal.

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This way, you will have additional damage in blinkstrike per level:
lvl x-your damage + x*30
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lvl 1-your damage + 30
lvl 2-your damage + 60
lvl 3-your damage + 90
lvl 4-your damage + 120
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But dont forget if you use spell that isn't based on original Blink, you have to add the following action before Unit-Order to attack and Unit-Damage unit :

Unit - Move (Casting unit) instantly to (Position of (Target unit of ability being cast))

Not that hard at all :D

Good luck making your blinkstrike !!!

Unless I'm greatly mistaken 'ground' actually refers to ground units. Terrain is used for what ground actually is. And blink cannot be used well for blinkstrike, as you cannot change the target. The target is hardcoded into the ability itself. I would instead use channel with targets type set to 'unit target'.