Sombra is not strong or anything (perhaps the reverse), she's just infinitely annoying.
I've had a sombra, without fail in every last one of my last 10 games. Now I won most of these, lost the rest - but dear god is Sombra just a complete headache to deal with. It's never what they start out with, it's never what they switch to when they are winning - it's ALWAYS ALWAYS the 'oh we are losing, let's go Sombra'.
Yes I know how to counter her. I go Cass and that's it, but not being able to play my way is so irritating.
Yes Widow is probably the most toxic hero but jesus hell, invis as a concept is so....sigh. Oh and amp is an unbelievably good ult for how quick you get it.
I know the only comments Imma get on this would be the 'skill issue' type - and yea, you're right