Nice! First, baby! Garbodor is much better now that Float Stone exists. Edit: So now, not only can it block abilities, it can also free retreat if it's not knocked out. The bad news, is that it only has 100 HP. 100 HP isn't very good. Psychic weakness isn't that painful, because not too many people are playing Mewtwo these days and your not gonna be attaching any energies to it anyway. The ability to block Abilities, is awesome. The downfall, to it though, is that it can be tool scrapped or catcher'd up and 1 shot. 3 retreat doesn't hurt this card at all, because of Float Stone. Plus it's searchable by Heavy Ball.
This card can be good, but only really against Darkrai. Because Darkrai uses no switches. It doesn't hurt TDK very much, TDK can still smack for 30 and 30 with Kyurem or 60 and 30 if Laser Bank is used. And if you get the 3 Energy requirement on Kyurem, you can catcher up a Garbodor and 1 shot it.
I have to give this card a 3/10, because it's really not that good any more, because it can be bypassed either by tool scrapper or 1 shot.
Art Work is awesome though, so 10/10 for that.