As a powerful mythic in a relevant type, the fact that you can get Rith for around $3 right now is wild
When designing a card to a character, its helpful for there to be a few things you can design to about their personality or actions they take
Selesnya (Green-White) Voice of Resurgence from Dragon's Maze In Limited Edition (Alpha) , there was a card called Keldon Warlord whose power and toughness were equal to the number of creatures you had on the battlefield
It will be interesting to see if Buzzwole EX ends up getting similar treatment, or if The Pokmon Company decides its design can be considered different enough
On top of that, it has a three-Energy attack called Eon Blade that deals 200 damage, but it makes Latias Ex incapacitated to attack on the next turn
(Then planeswalk away from this phenomenon.) Winds of Change When you encounter this phenomenon, it deals 2 damage to each creature with Flying