GetThreeRandomEnemies

--[[
    Usage:

    local targets = GetThreeRandomEnemies(pUnit)
    if(targets) then
        for k,v in ipairs(targets) do
            pUnit:CastSpellOnTarget(SPELLID, v)
        end
    end
]]

function GetThreeRandomEnemies(pUnit)
    local T = {}
    local X = 0
    while(true) do
        local target = pUnit:GetRandomEnemy()
        if(not target) then -- no enemies inrange
            break
        end
        local add = true
        for k,v in ipairs(T) do
            if(tostring(v) == tostring(target)) then
                add = false
                X = X+1
                if(X >= 10) then
                    return T
                end
                break
            end
        end
        if(add) then
            table.insert(T, target)
            X = 0
            if(#T >= 3) then
                break
            end
        end
    end
    return T
end