We have incentive to attack since the creatures are larger or we could take the more controlling route by playing Opposition
You can use this politically by offering card draw to other players or negotiating deals in multiplayer
I suspect we might have some breathing room to go higher, but who knows
It's because it allows players to use cards that they do not physically own
With Hexavus, instead of reloading only by exiling the little Tetravites buzzing around everywhere, you can tap Devoted Druid to make a green mana then untap it, use that mana to pay for Hexavuss second ability (and in the process removing the -1/-1 counter from the Druid), and repeat
You will also find the game board, game pieces, and a deck of Pokmon cards that matches each booklet