Normally it is not possible to attack an NPC that someone else is fighting. You get the message \"You must be grouped with PlayerX\"
Spellcasters however, are not only able to attack that NPC, they are able to \"steal\" the kill and get the looting rights. When the spell is cast, the person in the fight simply stops attacking and continues to get hit. The mage is then free to cast his spell until the NPC is dead.
I don\'t think that allowing spellcasters to use PlayerX as a living meat shield was an intented feature!
Thank you,
-Zero
