Forge Disc - 4

4 is a Forge Disc released as part of the Burst System as well as the God Layer System. It debuted with the release of the B-75 Booster Blaze Ragnaruk 4Cross Flugel on March 18th, 2017.

Description
4, like other even numbered Core Discs, is symmetrical and elliptical in shape in order to facilitate a Disc Frame. Each side features two protrusions, one molded into the shape of the number 4 and the other molded into the shape of the Roman Numeral "IV". The protrusions extend further from the center more than other Core Discs which grants 4 high Outward Weight Distribution and subsequent Stamina potential. As a Core Disc, 4 is comparatively heavier than regular Discs such as Heavy and Gravity which grants higher Knock-Out resistance and the ability to facilitate Disc Frames can add characteristics such as Life After Death with Cross or Glaive. While 8 has greater Stamina, 4 's Stamina is still comparable with greater Burst resistance due to the lighter weight and lower Outward Weight Distribution.

Overall
Overall, 4 features high Stamina without the massive Burst risk posed by 8 and high weight for Knock-Out resistance making the Disc a key part in Stamina and Defense Customizations. When paired with Disc Frames such as Cross or Glaive, combinations using 4 have high Life After Death as well.

As such, 4 is a must have for competitive bladers.

Takara Tomy

 * B-75 Blaze Ragnaruk 4Cross Flugel
 * Blaze Ragnaruk 4Cross Flugel (Premiere Set) (painted dark blue)
 * Blaze Ragnaruk 4Cross Flugel (WBBA G3 Prize)
 * B-80 01 Tornado Wyvern 4Glaive Atomic (Random Booster Vol. 6)
 * B-80 08 Beast Behemoth 4Cross Weight (Random Booster Vol. 6)
 * B-87 Draciel S 4Flow Cycle (Random Booster Vol. 7)
 * B-90 Galazy Zeus 4Meteor Planet (3 on 3 Booster Set)
 * Driger 2 4Vortex Hunter (Random Booster Vol. 8)
 * Quad Quetzalcoatl 4Meteor Flugel (Random Booster Vol. 8)