Region Trigger Help

[XxJizzxX]

For duels i am trying to make a trigger in which one unit in the duel arena has to die in order for the duel to end. For some reason, in conditions i can't find the condition thats something along the lines of "Conditions- Unit in (Region) equal to true

Where is this or how can i do this?
TY

 

[Pharaoh_]

It's a boolean comparison, Unit - Unit is in Region.

 

[XxJizzxX]

Thank You! +Rep

 

[Dr Super Good]

native IsUnitInRegion takes region whichRegion,unit whichUnit returns boolean