During your creation, your creators imbued you with what's known as a "War-Mind Programme", giving you the ability to exceed your limits for a short period of time.

For 1 minute (10 rounds), you can activate "War-Mind Programme" a number of times per long rest equal to your proficiency bonus and gain the following benefits:

• You deal additional damage with melee weapons you're proficient with, based on your Warforged level starting at 2d4 at level 1 and increasing to 2d6 at level 10 and 2d8 at level 18.

• Gain immunity to being Charmed and Frightened and have Advantage on Charisma (intimidation) checks.

• You have Advantage on STR, DEX and WIS saving throws.

At the end of "War-Mind Programme", you become stunned for 12 seconds (2 rounds) as exceeding your limits temporarily short circuits you. No spell or Action can remove this effect.