The official GemStone IV encyclopedia.
Glistening in the light, the crone's snow white skin is covered with frost and snow. Seemingly formed of living snow, the crone is a cold, imposing creature. The snow crone has a mop of tangle ice blue hair sticking out wildly in all directions.
These are good to use Mana Leech (516), a spell Wizards have access to, as the snow crone uses various types of magic.
Do not use Cone of Lightning (518), a spell Wizards have access to, as the snow crone has the ability to reflect the spell back at the caster.
Snow crones can shake off stuns.