It is entirely possible that this raffle is legit and that the OP has every intention of carrying out the lottery as fairly and as transparently as possible. When the OP has just 11 posts to his name and the character that is taking the entry fees is a disposable character and two posts in the thread supporting the raffle are previously unused, disposable accounts, it does make the raffle look a bit shady.
If you use your main account and have people send the entries to the level 20 character that actually pulled the scroll, you might end up with more takers if you do end up doing this kind of event again. This looks like a scam. It is entirely possible that this isn't a scam, but the OP did a poor job of presenting it as such.
I look forward to seeing the results of this raffle and I especially look forward to seeing how the OP will present evidence that the raffle was fair and transparent.