pokemon tcg all mewtwo cards the potent toxins of Team Rockets Nidoking ex Mewtwo ex (Genetic Apex #286/226,

Illustrated by: Kev Walker Multiverse ID: 270463

It does, however, make a full 60 card deck a little unwieldy in practice they can add quite a bit of thickness to the cards that makes them a bit challenging to shuffle

If you have nothing to spend your mana on, you can just turn this into a 4/4 or a 5/5 in a later turn

While this is an extreme example you can kind of say that the scry in this case is worth a free mana and a free +1/+1 counter (to account for the higher power of cards played) on each of your next three turns

This might not quite be Siege Rhino, but it seems pretty nice

While its ability to endlessly regenerate itself is one thing, being able to mill six cards from the top of your library instead of drawing every turn is just too powerful of an effect for players to be able to access for free