Teemo Poison
I have no idea if this is the right place to post this, and I'm not certain if the effect is intentional or not, or even if this was a change at some point. I don't remember ever seeing it in a patch, but I'm not even sure if it ever worked.
My question/point is why Rylai's seems to not work in conjunction with Teemo's poison from his E. It works with his Q and R, but not the poison! I do realize that this would be a massive perma-slow, which makes me think it might be intentional, but the same effect can be gotten from Frozen Mallet!
Did some research, found it's because the poison doesn't count as a spell effect! I'm curious why not, as Teemo doesn't seem to be a super strong champion and making the poison a spell effect would be a minor quality of life effect. Would make Rylai's and spell vamp effective on him for sure.