Just today I have gotten a really powerful card and saw what it did in the
Japanese spoilers. It is Giovanni's Nidoking. This is a very powerful card
that will be in english in the future. Lets look at the stats.
Stage 2                   120 HP
Giovanni's Nidoking  Grass
Attacks:
G  Intimidate
During your opponent's next turn, prevent all effects of attacks including
damage done to Giovanni's Nidoking from pokemon with 50 HP or less.
GGGC  Rolling Attack  [40+]
Flip a coin, if heads, this attack does 40 damage plus 30 more damage. If
tails, this attack does 40 damage.
Weakness: P
Resistance: None
Retreat cost: CCC
It can destroy powerful cards pokemon like Venomoth, Gyarados, Dragonite, or
even the powerful Charizard itself! I reccommend you put Giovanni's Nidoking
in any grass deck.