Cho-Z Valtryek is an Energy Layer released by Hasbro as part of the Burst System as well as the Pro Series System. It debuted in western countries with the release of the Pro Series Starter Pack Cho-Z Valtryek Blitz-P Jolt.
Hasbro's Cho-Z Valtryek is an Attack Type Energy Layer, with the center featuring a feathered, armored face facing forward, akin to Winning Valkyrie, meant to represent the Layer's namesake; Odin's handmaidens of Norse mythology, albeit changed to match the anime's rendition; an armored knight. Like its predecessors, Cho-Z Valtryek features three large wings as the primary points of contact, granting the Layer high Knock-Out and Burst Attack potential. As part of the Pro Series Cho-Z Layer System, Cho-Z Valtryek features metal in its design; in this case, concentrated behind each wing and in the center. However, Cho-Z Valtryek features less metal than most other Cho-Z Layers and most of its weight comes from its size. Cho-Z Valtryek also features a gimmick; the Layer features an anti-Bursting mechanism called the "Cho-Z Awakening System".
At high spin velocity, the centrifugal force activates a bistable mechanism, revealing red sub-wings called the "Turbo Blades" and in turn extending a "Burst Stopper" tab located in the left groove meant to fit the prongs of the Disc. This Burst Stopper then obstructs the Disc from moving during impact, preventing the loss of the last click and preventing the Cho-Z Valtryek Combination from Bursting. Due to the bistable mechanism, the wings and tab do not retract when spin speeds are low and must be manually pushed in after every match, the mechanism also allows the gimmick to work as intended.
Because of Cho-Z Valtryek's triangular design, only the upper-left wing will move the tab with the other two being purely aesthetic. However, due to the bistable mechanism, Cho-Z Valtryek requires rather extreme spin speeds for the gimmick to activate which may be difficult for some Bladers.
The Layer's size and the inclusion of metal makes Cho-Z Valtryek heavier than most God Layers and improves Attack Potential by increasing the weight of the Layer, granting higher inertia that increases both Knock-Out and Burst Attack as well as increasing the Layer's Burst Resistance as the high inertia resists teeth skipping, a property that compliments the tall teeth of Cho-Z Valtryek. Due to these factors and the shape of the wings, Cho-Z Valtryek performs well in Attack Combinations. However, the wings of Cho-Z Valtryek show greater Attack potential when the "Turbo Blades" are not active as they cover up a more acute point of contact and when the "Turbo Blades" are active, the new point of contact is much more obtuse, reducing recoil. As such, Cho-Z Valtryek almost requires the use of the three pointed Zenith-P Disc to concentrate weight at the points of contact to be effective with the gimmick activated.
Unlike most other Cho-Z Layers and like other Layers with the "Cho-Z" prefix, Cho-Z Valtryek is incompatible with a Level Chip.
Hasbro's Pro Series Cho-Z Valtryek's heavy weight, strong teeth and gimmick made the Layer one of the better choices for Right-Spin Attack at the time of its release, comparable to Cho-Z Achilles. However, because Cho-Z Valtryek's recoil is reduced when the gimmick is activated, combinations using the Layer can become inconsistent in performance. Furthermore, because Cho-Z Valtryek almost requires the use of the Zenith-P Disc, the Layer is less versatile. The Layer has since been outclassed by more recent releases.
As such, Hasbro's Cho-Z Valtryek is not a must have but is instead a welcome addition to a blader's collection.