[Gameplay] Bug with Mordekaiser's ultimate on Teemo

Hey summoners,

I've noticed a strange thing happening on Mordekaiser's ultimate. When you use your ultimate on Teemo and kill him, the ghost you get doesn't apply the poison on his auto attacks. Is it normal ? Because with the Tryndamere's ghost you have the fury passive that gains critical strike.

I look forward to reading your answers.