The second attack, Max Bullet, deals 160 damage as well as 60 damage to one of the opponent's benched Pokmon
With Abyss Proxy Shop, you can play with Everybody Lives
I do feel though they may be viable Standard and Extended options, but because of the extraordinary power-level of Extended right now, I think that perhaps there will be too many unfavorable match-ups, especially the modified Elfball, numerous artifact combo decks, and maybe Zoo, but if the deck can be modified to a state where it is a tenable Extended option, that's terrific in my opinion
Wishful thinking aside, Balance can swing the game around in your favorite in a lot of situations
I think we can assume the game is over, so I would honestly be concerned if I see a Mega Zygarde being played against me