Mewtwo, Ditto, and Snorlax from “Pokemon Card 151!”

[Jaxolotl]

You still need to retreat in order to transform, though. Maybe for something like Lost Box that runs a lot of switching cards and doesn't mind losing a turn of attachments to retreating, but I can't imagine wanting to make a play like this unless you absolutely needed to have something Active at the end of your turn... Diancie, maybe?

Just run a 4 line. Your bound to get at least 1 in your starting hand that way

 

[N's Rhyperior]

Ditto - 5 Geodudes, good starter card. It helps you get out of a rough start. If we ever have Pokemon that do more damage for each mon in the discard, Ditto is an instant must-have.

Snorlax - too specific. 3

Mewtwo - still don't like it. 2-3

 

[PMJ]

Just run a 4 line. Your bound to get at least 1 in your starting hand that way

That is true, but even with a full set, you aren't guaranteed to start with it, and my point was that being unable to transform from the Bench makes Ditto a far worse card than it could have been.

 

[fleshrum]

So if your cube has a set card list that people start with, as some cubes do, this is basically an all star alongside that sandstorm dunsparce. Very very good