[Trigger] Cannot have two Stings on the same target?

[Aegis Runestone]

Okay, here's the deal. I have a hero who has two abilities: Serpent Sting and Wyvern Sting. Both are based/have a part based on Shadow Strike. They use different buffs. I'm trying to make it so that if the target is already under the sleep/dot of Wyvern Sting, that you cannot cast Serpent Sting on the unit. And vice-versa.

Here's what I got for attempting to put Serpent Sting on Wyvern Sting.

• SerpentStingOnWyvernStingTarget
  • Events
    • Unit - A unit Begins casting an ability
  • Conditions
    • (Ability being cast) Equal to Serpent Sting
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (((Targeted unit) has buff Wyvern Sting Debuff (Pause)) Equal to True) or (((Targeted unit) has buff Wyvern Sting (damage)) Equal to True)
      • Then - Actions
        • Sound - Play Error <gen>
        • Game - Display to (All players controlled by a User player) the text: |cffffcc00You canno...
        • Game - Force (Triggering player) to press Escape/Cancel
        • Sound - Destroy Error <gen>
      • Else - Actions
        • Do nothing

Okay, this trigger does not work at all. I get noting. No error message, sound, or otherwise.

What am I doing wrong?

 

[raft_pl]

Use target unit of ability being cast, targeted unit refers to orders like attack etc afaik
Also, remove that "Do nothing" at the else actions, having it there does the same as having nothing, but it takes a lil bit of cpu memory.

 

[Aegis Runestone]

Sweet. I get the sound and the error message now, but the hero still fires the ability. How do I prevent that?

 

[raft_pl]

Unit - Order Triggering unit to Stop.

Also, use Unit starts effect of an ability instead of begins channeling ability. Its just better and more precise.

 

[Aegis Runestone]

It works great! Thank you! The only remaining problem is that the mana is still consumed when the ability is used. How do I fix that? :S

Edit: Nevermind, I got it fixed.

Cool! Thanks, man!