Events - A unit acquires an item (получает предмет)
Conditions - ...
Actions -
Set Hero1 = (Hero manipulating item)
Set MithrilMoney = (Item carried by (Hero1) of type Мифрильные деньги)
Set MoneyCount = (Charges Remaining in (MithrilMoney))
Set Item1 = (Item being manupulated)
Set Item1CV = (Custom Value of (Item1))

If-Then-Else
  If:
    MoneyCount >= Item1CV
  Then:
    Set charges remaining in (MithrilMoney) to (MoneyCount - Item1CV)
  Else:
    Drop (Item1) from (Hero1)
    Delete (Last dropped item)