how about make a counter.
An integer that counts down to how many remaining heroes are left as one by one they die.
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Event:
Unit-Dies
Condition:
(Unit is a Hero) Equal to True
(Triggering Unit) Equal to Hero01 OR (Triggering Unit) Equal to Hero02 OR (Triggering Unit) Equal to Hero03 OR (Triggering Unit) Equal to Hero04
Action:
Set HeroRemaining = HeroRemaining - 1
If (HeroRemaining <= 1)
Then
<Play Effects>
Else |