Mnemonic sets provided useful bonuses in various aspects, such as in obtaining florins, Action Points (AP) or experience (XP), in the drop rate of items and mnemonics, as well as in crafting and in player-versus-player conflicts. It was possible to combine the same Mnemonic set once every 20 hours, and each effect lasted for the same amount of time. Certain sets from different chapters also possessed the same effect, and several effects could be activated simultaneously.