As well as Waterstones and GAME you can always head into your local friendly gaming store and grab some, take a look here to see where yours is.
Goblins swarm, Elves ramp, Zombies recur, Humans do suspiciously efficient things for two mana
There are also: Secret #000 Very rare distributed in April 1997 at Ito-Yokado stores (a Japanese supermarket chain)
#668454 Subgrades Surface Centering Edges Corners Grade MINT Population With Label 117 Population 147 Population higher 103 Total Submitted 367 Gem rate 28% Card Details Card Details Label Ace Name Mewtwo EX Release Year 2016 Set Evolutions Number 103/108 Language English Variant Full Art Population Highlights 117 147 103 Total Submitted 367 Population Data All Labels All Labels Standard Colour Match Ace Number of certs Authentic 0 Certs Grade 1 2 Certs 0.5% Grade 2 0 Certs 0% Grade 3 1 Cert 0.3% Grade 4 1 Cert 0.3% Grade 5 2 Certs 0.5% Grade 6 13 Certs 3.5% Grade 7 29 Certs 7.9% Grade 8 69 Certs 18.8% Grade 9 147 Certs 40.1% Grade 10 103 Certs 28.1% Grade Label Population Same Grade 14 Standard 16 Colour Match 117 Ace All Grades 43 Standard 27 Colour Match 297 Ace How did we define your grade

Meanwhile, the escape mechanic means that if the control deck doesn't have very specific removal like Prison Realm, Banishing Light, or something else that exiles, you'll soon be casting Uro, Titan of Nature's Wrath from your graveyard to do it all over again while adding a huge planeswalker-pressuring creature to the battlefield at a low cost
The turns when you get to discard it and another 2- or 3-drop, cast this card for its mayhem cost, and put another creature into play will be very strong, indeed