Select the support magic that you wish to cast.The amount of magic that can be cast is limited by the Chamberlain's MP.
The Chamberlain's MP is currently .

Wind Walk Lv.2Decrease Weight Lv.3Shield Lv.3Mental Shield Lv.4Might Lv.3
Bless the Body Lv.2Magic Barrier Lv.1Resist Shock Lv.1Bless the Soul Lv.2