From Bulbapedia, the community-driven Pokémon encyclopedia.
B-L-S is the name of the deck used by Hiroki Yano, the Ten and Under Champion in the 2006 World Championships. The deck is a variant of the LBS archetype, utilizing the Energy distribution of Blastoise ex, and the ability to deal heavy damage with both Lugia ex and Steelix ex.
B-L-S is one of the four 2006 World Championships Decks, released on October 31st, 2006. Each deck comes packaged with a 2006 World Championships Booklet. Each card features a silver border, Yano's signature, and limited edition 2006 World Championships back. None of the cards are tournament legal.
Hiroki Yano won the 10 and under age category with one of the most powerful decks out there. Lugia ex and Steelix ex use powerful attacks, allowing them to Knock Out most Pokémon in just one hit! Blastoise ex's Energy Rain Poké-Power deals out the Energy that those Pokémon need to be victorious!