Haze Shenron, Negative Energy Explosion

[Critical] [Blocker] [Auto] If your Leader Card is a "Shadow Dragon" card : When this card is played from your hand or discarded by a "Shadow Dragon" card's skill, you may look at the top card of your deck; if it's a black "Shadow Dragon" card you may add it to your hand, otherwise, place it at the bottom of your deck. [Auto] When this card attacks, choose up to 1 of your opponent's Battle Cards, send it to its owner's Warp, then switch this card to Active Mode at the end of the turn.