Battle gland

This soft, bean-shaped item is warm to the touch, and the size of a fingertip. 

GERMINAL STAGE: When initially equipped and attuned to, the battle gland confers the following benefits:

• When you make a melee weapon attack, you may activate the battle gland before rolling to hit. The battle gland is active for one minute.
• While the battle gland is activated, add a 1d4 to your attack rolls and damage rolls with melee weapon attacks and ranged weapon attacks made with thrown weapons, and you have disadvantage with ranged weapon attacks. 
• While the battle gland is activated, if you are reduced to 0 hit points, you may gain one level of exhaustion to make a DC13 constitution saving throw. On a success, you are reduced to 1 hit point instead, and the battle gland de-activates. 
• When the battle gland de-activates, make a DC14 constitution saving throw. On a failure, you gain one level of exhaustion.

JUVENILE STAGE: The battle gland reaches the juvenile stage after two months, or after the user has gained 4 levels.

• When you make a melee weapon attack, you may activate the battle gland before rolling to hit. The battle gland is active for two minutes.
• While the battle gland is activated, add a 1d6 to your attack rolls and damage rolls with melee weapon attacks and ranged attacks made with thrown weapons, and you have disadvantage with ranged weapon attacks. 
• While the battle gland is activated, if you are reduced to 0 hit points, make a DC15 constitution saving throw. On a success, you are reduced to 1 hit point instead, and you gain a level of exhaustion. 
• When the battle gland de-activates, make a DC15 constitution saving throw. On a failure, you gain one level of exhaustion.

ADULT STAGE: The battle gland reaches the adult stage six months after it reaches the juvenile stage, or after the user has gained 4 levels since the battle gland reached the juvenile state.

• When you make a melee weapon attack, you may activate the battle gland before rolling to hit. The battle gland is active for two minutes. You may de-activate the gland on your turn.
• While the battle gland is activated, add a 1d6 to your attack rolls and damage rolls with melee weapon attacks and thrown attacks.
• While the battle gland is activated, if you are reduced to 0 hit points, make a DC15 constitution saving throw. On a success, you are reduced to 1 hit point instead, and you gain a level of exhaustion. 
• When the battle gland de-activates, make a DC16 constitution saving throw. On a failure, you gain one level of exhaustion.

Notes: insertion into an open wound on the torso