A True Friend
Defeat a berserking shade within one minute.

This battle occurs straight after defeating Gretel. Skip all cutscenes, don't worry if you miss this trophy in your first playthrough, it will be much easier to obtain in New Game+

This fight is pretty easy and easily obtainable in your first playthrough. Use your dark lance to knock your enemy off the wall, then get in close and deal some real damage with dark hand or your weapon. If you managed it within a minute the trophy will unlock.