EDIT: I can enter Loreroot now.
[s]I’m actually not allowed to enter the contest jet (because of Loreroot) but I still want to give my solution of the problem. [/s]
Using bait would be a good thing to do if we knew who would be the next target, but since we don't know exactly how the shadow picks the victims it picks the chance is too small that it will fall for the bait before he takes down many others.
What we need:
Mirrors (or one big one)
A candle (or another small light source)
A rope (or anything else that could be used to immobilize someone)
I suggest we wait for the shadow to target it's next victim. When the victim is found (it won't be hard to recognize because of his black eye) he should be summoned to an empty room in a remote location . In the room should be as little as possible obstacles that could cast a shadow to prevent Phantasm's shadow to hide in them. Furthermore the room should be completely without sunlight, but lit by the candle (or the other source of light). In this room Phantasm will have to make the victim unable to move around, it doesn't matter how although we don't want to kill the victim so I suggest using a rope. With the slight amount of light the shadow should be weak so it won't be too hard. When the victim is immobilized we have to open the room to the sun, we have to lit up the room so that the only shadow in the room would be Phantasm's if his shadow would be attached to him. To light the room in the right way we should use some mirrors and put off the candle so it won’t interfere with the light leaving another shadow. Also we have to make sure we don't kill the shadow right away so the victim should have a tiny shadow where Phantasm's shadow can hide himself. The victim's shadow should be made smaller until Phantasm's shadow is nearly erased. Then the shadow would have to reattach himself to Phantasm in order to survive.
From then on it's up to Phantasm, he will have to fight the shadow (not directly of course but as a fight of willpower) until it obeys him the way any normal shadow obeys it's source. The only thing we can do to help is close the room one's, so the shadow is on it's weakest again. Now we will have to wait until the fight between Phantasm and his shadow ends. The only thing Phantasm can do to prepare for the battle is rest and take in all the energy he can. To me this seems the best possible way to catch the shadow and reattach it to Phantasm.
[s]
I have a feeling I’m almost able to enter Loreroot but I still can’t, if the tactic I have in mind works I will be able to enter by tomorrow evening.[/s]
Samon