Blade Armor

The Blade Armor (ブレードアーマー) is an armor focused on mobility and using the Z-Saber (which physically adapts itself into X's buster, rather than a separate entity). The most significant feature is an upgraded air-dash called 'Mach Dash'. If the jump or dash buttons are pressed while X is airborne, X will freeze mid-air until you release the button or after about five seconds from holding the buttons. After this, he will perform a quick air dash that covers a lot of distance and damages enemies upon contact. You can air-dash vertically or horizontally, a feature from Mega Man X3, and you can also air-dash down.

This armor's charged shot can differ. Normally firing the blast will produce a plasma projectile similar albeit smaller and weaker to the Plasma Shot of the Force Armor/Ultimate Armor, but if Up is held, X will attack with an upgraded Z-Saber slash that covers a wider range than a normal Z-Saber slash and can destroy certain enemy projectiles when slashed. X will also not move while in mid-air and when clinging onto walls when he uses this move. The Blade Armor's Giga Attack is a very large slash which produces two giant waves of energy. The waves become more powerful when hit from a distance.

There's a glitch when using the Guard Shell that increases the charged buster and saber power dramatically but just within the shield's range. Also equipping said weapon increases the damage output while using the mach dash but only as the beginning.

Trivia

 * Due to extensive of blade as the primary weapon and the armor's characteristics to strike from distances, fans speculated Blade Armor is the basis for the development of Fairy Leviathan in Zero series