Hostile Attacking Random Player

[Silverfox]

I'm not sure how to create this trigger. Every 5 minutes, Dragons will spawn on the middle of the map or some region. When they spawn, they would search and attack random players' base. Thanks in advance!

 

[Maker]

Time - every 300 seconds of game time
Set point = center of region
Unit - Create x of y at point
Custom script : call RemoveLocation(udg_point)
Custom script : set bj_wantDestroyGroup = true
set unit = random unit from units matching matching unit is alive and matching unit is of type town hall
Set point = position of unit
Unit group - order last created unit group to attack move to point
Custom script : call RemoveLocation(udg_point)

 

[Legal_Ease]

Time - every 300 seconds of game time
Set point = center of region
Unit - Create x of y at point
Custom script : call RemoveLocation(udg_point)
Custom script : set bj_wantDestroyGroup = true
set unit = random unit from units matching matching unit is alive and matching unit is of type town hall
Set point = position of unit
Unit group - order last created unit group to attack move to point
Custom script : call RemoveLocation(udg_point)

I like it. I con't think of a better way.