been there, done that.

works if if you press the elixers. if you get 4 you can simply use a timer like this

ra := ">"
la := "<"

~1::    
    Start1 := A_TickCount
    SetTimer,Skill1,10
return

~2::    
    Start1 := A_TickCount
    SetTimer,Skill1,10
return

~3::    
    Start1 := A_TickCount
    SetTimer,Skill1,10
return



~5::
    Start2 := A_TickCount
    SetTimer,Skill2,10
return

Skill1:
    Time1 = 4800
    Elapsed1 := ((Time1-(A_TickCount-Start1))/1000)
    ToolTip %ra%%ra%%Elapsed1%%la%%la%, 915,280,1

    If Elapsed1 <= 0
    {           
        ToolTip,,,,1
        SetTimer,Skill1,Off
    }
return

Skill2:
    Time2 = 5300
    Elapsed2 := ((Time2-(A_TickCount-Start2))/1000)
    ToolTip % Elapsed2, 935,350,2

    If Elapsed2 <= 0
    {           
        ToolTip,,,,2
        SetTimer,Skill2,Off
    }
return

this is for 4x corus and overflowing on 5, made this for myself when I was playing that build. Your coordinates for the tooltip may vary