Queen Slayer Trophy in Arcania: The Complete Tale (PS3)
Defeat the loam vermin queen
How to unlock Queen Slayer
This is story related and cannot be missed
After meeting Lyrca the witch she will teach you magic and tell you to kill the Loam Vermin in the cave. At the end of the cave you will find the Queen. She requires the same tactics as her smaller relatives, attack as normal, dodging her attacks, and hit her with lightning when she burrows into the ground to force her back out.