The Shadow Libra BB-093 is Kairu's best Beyblade.
Dark Night Blitz: Shadow Libra dashes around crazily, pinballing off of the sides of the arena while smashing into the opponent, then knocks them to the very edge. He then comes up under the opponent, sending them flipping through the air to a Ring-Out.
Kairu's best Blade, he built it himself. While it doesn't always win, he does take pride in his work, and has a strong bond with his Bey.