local integer i = 0
local integer minlevel = 99
local integer invsize = 0
local integer templevel
local item it
local item temp

loop
    exitwhen i>6
    set temp = UnitItemInSlot(HERO,i)
    if temp != null then
        set templevel = GetItemLevel(temp)
        if templevel < minlevel then
            set minlevel = templevel
            set it = temp
        endif
        set invsize = invsize + 1
    endif
    set i = i+1
endloop
if (invsize>=6) then
    // Выбросить вещь it
endif