The official GemStone IV encyclopedia.
Stamina regeneration crystal
Stamina regeneration crystals will aid in stamina recovery.
The crystals have a level requirement and have a recovery period before one can be used again.
Each completed formula will yield three uses.
Minor stamina regeneration crystal
A minor stamina regeneration crystal provides a bonus of 10 to stamina recovery. This item may not be used by adventurers who have not trained 20 times.
Lesser stamina regeneration crystal
A lesser stamina regeneration crystal provides a bonus of 20 to stamina recovery. This item may not be used by adventurers who have not trained 40 times.
Greater stamina regeneration crystal
A greater stamina regeneration crystal provides a bonus of 30 to stamina recovery. This item may not be used by adventurers who have not trained 60 times.