In this case, Mewtwo teams up with Mew, which according to the lore of the Pokmon world, should be quite unusual
More recently in Ultimate Masters and Eternal Masters among others
They way you address all of these is basically by making sure you have a backup Stoutland if theyre able to KO your Active, and then Paralyzing the new Active
it replaces everything with one of each basic token
This can sometimes lead to announcing a value of X larger than what it seems like you can actually pay for the spell
Not terribly strong as you bat commander but excellent in your 99, you really only need to empty one opponent's hand (find the aggressive player) and you'll be ready to return the Temple of the Dead flip land to the card drawing, token generating, life draining bat, and rule the table