What's the worst Pokemon?

I thought it would be kind of fun that instead of when everyone ask for the best, lets see what people think are the worst overall Pokemon; the lamest Pokemon and the worst legendary?

I can't stand the Pokemon Abamnasnow, it takes super effective hits from 7 of the type classes. It is slow and bulky with what seems no defenses at all. And it looks dumb

The unknown are the lamest Pokemon they ever made! Let alone they used the alphabet to base them off of, they never gave a definitive back story or explanation to them. And they can only know one move, come on really! I find more enthusiasm in cold searching for a shiny Pokemon than catching all of the unknown!

The worst legend is celebi, a psychic/ grass type with 7-8 class types that it is super effective to. Legends are supposed to be tough and have a great moveset, not celebi.