Firstly,I thought that I need two gba sp,two adaptors,an ez-flash omega,my actual game.So before I obtain my events to the ez flash(in order to transfer them to the other gba sp through mystery gift),I need to create this save file which demands a NDS and a DS flash card for using the GBA Backup Tool.Therefore as you tell me I don't need the ez flash omega for tranferring my events but I need to edit my save file.It's simpler than I thought.