Kill last unit if unit of that type is more than 1

[KaiZen7th]

• Tree and Rock Creation
  • Events
    • Unit - A unit Begins casting an ability
  • Conditions
    • (Ability being cast) Equal to Dimension Portal
  • Actions
    • Destructible - Create a Ashenvale Canopy Tree at (Target point of ability being cast) facing (Random angle) with scale 1.00 and variation 0
    • Unit - Create 1 Stone for (Owner of (Casting unit)) at (Target point of ability being cast) facing Default building facing degrees

Hello @Pyrogasm,
My idea is creating only 1 Stone at a time - this Stone is a building. And I would love to have an effect of Nightelf building destruction (the cyan explosion) as this Stone is killed/removed.
What other things should I add to the trigger above?

 

[Uncle]

You should almost always be using the Event:

• Unit - A unit Starts the effect of an ability

Begins casting happens before the spell executes and can be interrupted while still firing the trigger.

You can choose the death art inside of the Object Editor under Art - Special. Look at a Night Elf building for an example.

 

[Pyrogasm]

One per player or per map?

 

[KaiZen7th]

One per player or per map?

It's One Per player!

 

[Pyrogasm]

Before creating the new Stone:

• Custom script: set bj_wantDestroyGroup = true
• Unit Group - Pick every unit in (Units owned by (Owner of (Triggering Unit)) of type Stone) and do (Actions)
  • Loop - Actions
    • Unit - Kill (Picked Unit)

This explains the custom script line: Things That Leak

 

[KaiZen7th]

Before creating the new Stone:

• Custom script: set bj_wantDestroyGroup = true
• Unit Group - Pick every unit in (Units owned by (Owner of (Triggering Unit)) of type Stone) and do (Actions)
  • Loop - Actions
    • Unit - Kill (Picked Unit)

This explains the custom script line: Things That Leak

Like this?

 

[Pyrogasm]

Yes.

 

[KaiZen7th]

Yes.

I did it, love you!