Mind-numbing Poison
Client records describe this reading. They do not confirm availability in gameplay.
Current client record
Coats a weapon with poison that lasts for 30 minutes. Each strike has a 20% chance of poisoning the enemy, increasing their casting time by 40% for 10 sec. 75 charges.
Sourced change history
No changes in the tracked log could be matched to this record. This does not mean the ability or item has never changed.