Here's my opionion:  I don't really care.
If people use him, go ahead, it doesn't matter to me.  Mr. Mime can just block his attack (Unless he becomes paralyzed, confused, or sleepy).  Since I started with bad things about him, I think I will continue.   IT takes 4 energy to work, then you have to discard.  Has a weakness.  Hard to get :P.  Ok now for the pluses about him.:
120 HP
MOST PEOPLE DON'T REALIZE THIS.  I want everyone to see something. IT SAYS YOU MUST DISCARD TWO energy cards!! So if you have like a water and fire deck, slap on 2 water energy and discard those instead of fire energy.
From above, I will say the attack:  Fire Spin:  Discard 2 energy cards in order to use this attack.  Damage: 100.  It doesn't say which type
Ok now that I said that to the world I will continue.......
Resistance to fighting
A 100 Damage attack.
 
Thank you for reading that.