The official GemStone IV encyclopedia.
Focus crystals can be made via the trinkets subskill of Alchemy. When activated, they will increase the casting strength of a spell of the same magical-type as the crystals for one cast. Each item has four uses.
They are similar to Focus potions.
Your thoughts gain an exceptional focus, previously faint sparks of understanding growing clearer in your mind.
A deeply focused look fills Zuzana's eyes.
- Spell ending
Like a fading dream, your exceptional magical focus slips away.
Zuzana appears less focused.