Saibaimen, Endless Explosions (Reprint) (BT7-068) - Battle Evolution Booster

[Blocker] (When one of your other cards is attacked, you may switch this card to Rest Mode and change the target of the attack to this card.)
[Permanent] You can include as many copies of this card in your deck as you like.
[Auto] When this card is KO'd, choose up to 1 of your opponent's Battle Cards with an energy cost of 1 or less and KO it.