Dragon Thunder

If you have 3 or more energy in Rest Mode, you can activate this card from your hand without paying its energy cost.
[Activate : Main/Battle] If your Leader Card is a 《Shadow Dragon》 card : Choose up to 1 《Shadow Dragon》 card in your Leader Area or Battle Area and it gets +5000 power for the turn. If you paid the energy cost to activate this skill, choose up to 1 card in your opponent's Battle Area and negate its skills for the turn.