Clash of the Titans

See the ‘Bull’s-eye’ trophy above for more information on sub weapon seizes. Please note that this doesn’t have to be perfect though. This trophy can be gotten at the same time as the ‘Partner’ trophy above.
Simply enter 2 player mode by pressing on the second controller. Now with this second controller you need to go up to one of the town’s people and start the sub weapon seize. Simply complete the action sequence to successfully disarm the person & get the trophy.

So when you are with a support character that characters health is located below yours, it is the green bar. This character needs to take damage on purpose before you can go for this trophy, so just let him attack an enemy on his own. Alternatively press on a 2nd controller to control him yourself, you can then just let him stand there which will mean he will lose health a lot faster.

Now you need to equip your healing core ability, the first one I came across was the ‘Caducesian Core’. Press to have the option of equipping it & put it into one of the four slots available. To use it simply select the slot you put it in by pressing that direction on the d-pad (, , , )) & press circle. Remember that you need to have some soul before you can use the item.

You want to use this when the support characters health starts to flash red. You need to heal him enough so it stops flashing. Do this 5 times and the trophy is yours.