[Trigger] Is there an easier way to do this?

[Assassins-Creed]

Is there an easier way to do this trigger and what he is asking?

 

[MortAr]

• Stone
  • Events
    • Unit - A unit Is attacked
  • Conditions
    • (Unit-type of (Triggering unit)) Equal to Stone
  • Actions
    • Set StoneVar[(Player number of (Owner of (Attacking unit)))] = (StoneVar[(Player number of (Owner of (Attacking unit)))] + 1)
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • StoneVar[(Player number of (Owner of (Attacking unit)))] Equal to 5
      • Then - Actions
        • Set Stones[(Player number of (Owner of (Attacking unit)))] = (Stones[(Player number of (Owner of (Attacking unit)))] + 1)
        • Set StoneVar[(Player number of (Owner of (Attacking unit)))] = 0
      • Else - Actions