And Mystogan used Edolas magic plus ordinary magic to end as a high S-Class! He could match Laxus who defeated Erza! I mean our highest level should be Natsu...and well putting a whole guild under a spell in no time and without preparation or time needed to perform such a huge spell....well I feel the power bases a bit off!

Even thou it is a small illusion...acting like that could also hold off an army of whatever the case! It is just unbalanced, the awareness that something is a illusion comes from an outer trigger! By getting everyone in an illusion, even the master, the illusion would simply continue if not tine triggered....well and what holds you off to just theoretically kill everyone then?

@Arcana: Why not asking Sidous to come with you? I mean people would know that he traveled with a caravan when he was young.....it is not a hidden part of his history or anything like that!