When Ahri fires her Orb of Deception on some minions, I noticed that the damage output isn't always the same.
Assuming both situations are with the same Items (so no change in AP and MP) it's sometimes the case that I can kill caster miniions with one combo (so the orb hits both times). Then without changing AP and MP sometimes the caster minions are left with some HP (also the orb hits both times).
Is there anything else affecting my damage on those minions? Or is it that I maybe just have sometimes a few more AP from any sort of Buff or because I used my ignite (I have the +5 AP when Ignite on CD Mastery for Ahri )?