Once you obtain the Veil Sight and Mire power, progress until you can do the Farm mission. If you have already completed the mission, select "Replay Mission" from the journal page. Make your way through the farm and underground base until you get to the room that has the Shield power crystal. Once here, because you are in a room surrounded by crystals, when you activate a power you do not lose any Veil Energy. Now simply use a rubberband around one of the Analog-sticks or any other method that keeps B.J. moving in the room, and leave the controller and console alone for the desired time. When you return, you should have the new trophies unlocked.