Jet Stream - Less of a weapon and more of a technological system which Yoru built himself for ease of movement, this equipment is made up of specialised boots and gloves. The boots are fitted over his feet, doubling as incredibly comfortable hiking boots so as to make them functional, with the inner linings made of decent wool for warmth and comfort. Attached to his wrists are specialised gauntlets which match the boots, though while deactivated they remain hidden under Yoru's sleeves.
Bring the Rain - By covering his skin with some sort of clothing, Yoru essentially keeps his Aura contained, preventing it from expanding out from his form. With each section of skin he reveals, perhaps say by parting himself from an article of clothing, his Aura is slowly released from it's cage, allowing him to draw from it more effectively. By the time he is wearing nothing at all, his body almost gives off a glittery yet transparent glow as his full Aura is revealed.