The official GemStone IV encyclopedia.
Greater spider has a web attack (probably bolt based) as well as some sort of stun recovery. The stun recovery looks like:
A greater spider's legs become a flurry of action as it begins to move again!
Bolt attack looks like:
A greater spider rises on its legs, tucking its abdomen beneath itself to aim its spinneret at you! You dodge the webbing with the grace of a dancer! You feel great!
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