The Cold Blood is a Shield that can be wielded by Vexen in Kingdom Hearts 358/2 Days. It can be upgraded to the Cold Blood+. Cold Blood+, as compared to Cold Blood, is a more physically-oriented shield, as it gives much larger stat bonuses to the Strength and Defense stats than Magic, as compared to the stat bonuses these stats received with the Cold Blood.
The Cold Blood shield is comprised of four teardrop-shaped pieces. The top and side pieces are blue with blue-white edges and a thin, sky blue line separating the two colors. The bottom piece is a bit larger and more angular than the other pieces, but it shares the same coloration. All of the pieces are held together by a blue-white ring with four spikes along the outer edge and a black inner edge. There is also a small, sky blue diamond in the middle of the shield.
The name "Cold Blood" is a reference to cold-blooded animals, fitting Vexen's temperament.
Cold Blood's combo begins with a jab forward, followed by an identical jab forward. It finishes when Vexen poises the shield behind him, then hurls it in front of him, it going a good distance away before flying back into his hands.
Its aerial combo begins with a small jab to the left, then a 360° spin of the shield around Vexen. This move can be repeated, and upon its execution, a -Combo is prompted. Upon initiation, Vexen will poise his shield above him, them bring it striking down below him before it goes flying back into his hands.