Concentration Regeneration is an ability that periodically pulses and restores a portion of the wearer's Concentration into their overall Concentration pool. This ability is most commonly found on magical jewelry.
They are typically turned on and off by using the ATMOSPHERE command.
Every 60 seconds, the item will pulse, and during that pulse if the wearer's Concentration pool is less than 100%, the item will restore 1% of their max Concentration up to a cap of 5 concentration per item per pulse.
The atmospheric item must be turned on and worn to be effective. This can be checked by using the ATMOSPHERE LIST command.
The effect stacks with other regeneration items.