Supremacy Gear: Scale Mail

The Scale Mail is the Balance Breaker armor of Boosted Gear, Divine Dividing and Supremacy Gear.

Summary
Ace first activated his imperfect version of Scale Mail at the end of Season 1 of DxD by seeing a crying Rias

Abilities
The Scale Mail generates a Dragon Armor while drastically increasing the user's power, abilities, speed, and defense. It also temporarily allows the user to use the power of the Boosted Gear and Divine Dividing without the 10-second interval. The armor is also capable of repairing itself from almost any damage it takes.

Weakness
Wearing the armor and the duration it stays activated depends on the users physical and mental condition, otherwise it can be severely lethal to them, so the Sacred Gear forcefully removes the armor when the wearer reaches their limit as a fail-safe.