What champion do you hate seeing on free rotation?

For me it is Kalista. The champion isn't annoying to deal with. But when someone picks her up and doesn't even link an ally with her spear it drives me nuts.

Another champ I don't like seeing on free rotation is Kindred. It's mostly because people don't know how squishy she is and for to neut so often. Also when a Kindred player slams down her ult and then walks out of it. There are a few things that make me cry as hard as this one.

There maybe more but I can't think of others at the moment.