Ground

Location
It is found on the other side of an impassable mound of dirt at Kalay Docks; it can only be reached by going east from the entrance to Altmiller Cave and traveling the stretch of land bordering the top of the Karagol Sea, where the town can be entered from the other end.

Description
When Set, it increases base HP by 9, base PP by 3, and base Agility by 3.

When used, Ground paralyzes a single foe for one turn. This acts first in battle regardless of the Agility ratings of the user and the target, and in VS mode it acts even before the opponents' other "acts first" moves like Granite and Flash (making it useful in the VS mode in an environment where the opponent often uses these defensive moves).

Analysis
As the only Djinni in Golden Sun (and one of the only two Djinn in The Lost Age) that can inflict temporary stun, Ground is invaluable for cutting down an enemy's ability to attack.

Stall Trick Mini-Strategy
Requires this djinn and the Petra djinn to work and one enemy/boss.

This strategy is intended to stall at one act of an enemy every turn. Here's the walkthrough:
 * Pre-battle: Have one person (P1) equip with one of them and the other person (P2) with the other. The other 2 (P3 and P4) will be the core offense and defense the entire time.
 * Turn 1: P1 activate Ground/Petra to stun one acts while P2 use a supporting tactic.
 * Turn 2: P1 re-set his/her standby Ground/Petra; P2 activate Ground/Petra to stun.
 * Turn 3: P1 activates Ground/Petra; P2 re-sets Ground/Petra.
 * Turn 4 and beyond: Repeat and alternate Turn 2 and Turn 3.

In short, P3 and P4 will be doing the hard hitting and healing whenever necessary, while P1 and P2 alternate on Ground/Petra for the stalling. Do not use both Petra and Ground in one turn as that technically doesn't work. Keep in mind that the use of Petra and Ground will always go first, regardless of enemy's speed, so stun will always occur unless change of strategy or P1 or P2 are KO'd.

If an enemy/boss has only one act, you can achieve a no-hit run against them. If you fought multiple enemies and are down to the last one, you can simply follow the alternate Ground/Petra strategy against the last opponent as well.

If an enemy/boss has 2 or more acts, this strategy can limit their options. If by any chance P1 and P2 are KO'd, either P3 or P4 can revive them. Though it will give the monster an extra act, the cycle can repeat once the support is given again.

While this strategy is proven to be one of the safest and the least costly strategies in the game, battles may take twice or triple the time to finish a battle. This strategy will have a much difficult time against certain bosses with 2 or 3 acts that can kill a player in 1 turn if unprepared and is less effective against multiple enemies. Surprisingly, this strategy is actually very effective against the final boss, Doom Dragon.

Name Origin
The words ground and earth are used fairly interchangeably (except when referring to the planet Earth).