Those who run a Manectric deck build in PTCGP are running a glass cannon deck that's invested everything in damage output, but can't necessarily be relied upon for durability and survival
This means that more or less you seem to be able to bank them and then turn in a bunch of them any time you want to build a deck
Every other I knew about (although some of them only since three months ago when I was investigating all the existing rarities.) Greetz, Quuador Thanks
Historic tends to avoid making those cards legal in the format, with all of them having been pre-banned
For one Colorless Energy, you can use Psyducks Headache attack, dealing a paltry ten damage but locking your opponent out of playing Supporter cards for their next turn
Nuka-Cola Vending Machine This Nuka-Cola Vending Machine gives a ton of value, even if you arent going immediately infinite with Peregrin Took