Oke I have here now the informations about the Garmen Grid again the (level 2) of the Garmen Grid. Garmen Grid strategy is all cool subject it will be give your extra Power to you Magic and Attack or Defence.
With the Picture will I explain the Garmen Grid for you please check this out.

-StoneHewn-

Stonehewn is the defence Garmen Grid of increasing of defence Power by +15 Points. Explain: Defence power is your curend without defence increasing is 96 and that Garmen Grid is named Stonehewn increase your power of Defence by +15 Points than your Power level of defence is now 111 Defnce points. Activate for Warrior Dress. It's give all thing slots the Defence power increasing by +15 Points.

-Healing Light

Healing light is the Garmen Grid (Level 2). You have four special Spheres Cure, Curaga, Life and Full-Life. That's are the Healing Powers of White Mages. The Dress sphere is nou not needed but you can with this heal your party of girls. But you have need the Defnce power of 300 points that will be decrease your Defence power by 15 point because you change the Garmen grid than you have the power of defence 285 points its enough to win easyly. On the level 30 of you party is to enough.

-Bum Rush-

This will be increase your Strenth (Attack) power by +10 points of your Attacking power level. This will be Strenth. This Garmen Grid is (Level 1) of the Strenth and Magic increasing by +10 Points. Now you can select the Warriors of Whate\Black Mages. But you attacking Magical power is now increased by 10 points because is it power up to +10 points of the magic. And with warrin is now Strenth increased by 10 points because it say Strenth +10 points of Strenth.