Haze Shenron, Venomous Mist

[Double Strike] [EX-Evolve]: "Haze Shenron" with an energy cost of 3. [Auto] When a card evolves into this card, switch this card to Active Mode, and you can't play copies of this card for the turn. [Auto] If you Leader Card is a "Shadow Dragon" card and you choose 1 "Shadow Dragon" card in your hand and discard it : When this card attacks or is used in a combo, choose 1 of your opponent's Battle Cards in Rest Mode with an energy cost greater than their current energy and KO it.