A few general questions about abilities (quite important methinks)

1. Why is it that some summon ward abilities gives units that has its attack button missing? Example: I made a ward ability using the serpent ward ability and for some reason the unit isn't attacking.

I suspect this is because the unit MODEL doesn't have an attack animation. Is this a factor?

2. Blight. Creating blight on a terrain through a spell would bollocks the terrain even after the blight is removed. Why? I made a blight ward and it creates blight. After the ward disappears, I triggered it so that the blight is removed, but the terrain is left as rough mud type surface.

Would using the Blight Remove ability cure this?

3. Does the Vampiric Potion ability stack with a. The lifesteal orb and b. Vampiric aura?

More later :D

About 1, Serpent Ward seems to have some uber hard code to say "No Command Card!" and if your unit isn't attacking... have you checked that the range is long enough, none of the dice are 0 AND that the attack is enabled and has the correct targets?

About 2, I think it automatically changes it to a dirt type thing regardless of removal.

About 3, I'm pretty sure it does. Vampiric Potion is a potion, Life Steal is an orb, Vampiric Aura is well... an aura...

1. The problem is not in the ability. Serpent ward attacks ingame. Just...ward classification removes attack and all other command buttons.

No, it isn't the cause. You can easily make shade attack enemy units.

2. I guess there is no simple solution for this. Maybe you could remember terrain type before creating the blight and regenerate it after removing it.

3. I guess it does. In dota broodmothers ulti stacks with both vamp aura and item lifesteal. And I guess the ulti is bulit on vamp potion ablility.

And the answer to the first question is indeed:

Both attack damage dice number and amount needs to be filled, or else the unit won't attack. It now works perfectly.

Triggering for the blight is way to complex, I think I'm going to avoid using if for now.

Thanks for confirming about the vampiric thing. Next questions:

1. What are the variables needed to make the Pillage ability run as a Hero ability? I know the button itself will need to be triggered and a dummy ability is therefore needed (since the pillage ability won't show up). But what are "Accumulation Step" and "Salvage Ratio"?

2. Can we turn the Phoenix egg ability into a Hero ability? Similar to Reincarnation, but the egg needs to be alive or else the unit dies. I always found the ability disappearing after the first death.

3. Does Cleaving Attack stack? Simple :)

Edit=Question 2: Can't you try to trigger add a new ability then?

Question 3: Don't really now what stack means :/, but if a unit have 2 cleaving attacks then it will attack with both of them :).

Well, I try not to trigger it first. I mean, is there a variable I'm missing or something? Because if it can be done without a trigger it would be better..

By "stack" I meant like this: A unit has cleaving attack ability, dealing 20% of his attack to nearby units. He grabs a cleaving attack item which gives 20% cleave. Will he have 40% cleaving damage? And if he picks up another item with 20% does it give him a total of 60% cleaving damage?

If you put it that way, then yes it stacks.