Concentrating

Concentrating is a Status Condition representing your mind's focus on active Spells.
Stacks of Concentrating are always Persistent, unless otherwise stated.

Abilities with a Test that involves "Concentration" (or "Concentration Abilities") impose one Persistent Stack of Concentrating when they take effect with that Ability as the source of the Status Condition. The Stacks clear when the source Ability ends or its effects end. Similarly, the source Ability will end if you lose your Stacks of Concentrating.

For each stack of Concentrating that you have, you will gain a Disadvantage on Ability Tests that involve Concentration. If you fail a Concentration Ability Test, you lose all Stacks of Concentrating and all active Concentration Abilities end. When this happens, the Ability that caused you to lose Concentration may still take effect and give you a new stack of Concentrating if it's description says that it does.

While you have stacks of Concentrating, if you take Damage, then you will need to make a Tuning Save. If you Fail the Tuning Save, you will lose all stacks of Concentrating and all active Concentration Abilities will end.