Mud

Mud is a Venus Djinni found in Golden Sun: The Lost Age.

Mud is the fourth Venus Djinni in Golden Sun: The Lost Age. The separate Djinn list viewable with the Select button from the status screen lists Mud and all other Venus Djinn  introduced in The Lost Age before the seven Venus Djinn from the original Golden Sun, most likely because all the Djinn from the original game can be gotten all at once late in The Lost Age. However, the original Djinn are ordered before all of the Djinn introduced in The Lost Age in the Djinn inventory screen while they are allocated to characters. By this order, Mud is the eleventh Venus Djinni in the GBA series, rather than the fourth.

Basic description

 * "Slow a foe with sticky mud."

When Set, Mud increases its Adept's base HP by 10, base Psynergy Points by 4, and base Agility by 3.

When Mud is unleashed in battle, all enemies' Agility ratings are lowered down to 50% of their normal values, the lowest value the Agility rating can be debuffed down to.

In The Lost Age, Mud's unleash animation visually resembles the user in their casting pose while piles of orange mud are lobbed from their position to the positions of each enemy on the field.

Location
Golden Sun:  The Lost Age: Mud is located in the Gabomba Catacombs. To reach it, in the first grass-covered room you climb down into, go up so that you're in the  semi-enclosed area between rocks below the mass of grass just to the  left of the elevated area you climb down from. Cast Cyclone here and you will automatically be transported through a "cyclone ground portal"  hidden within the leaves above, and you will be dropped into the floor  below right next to Mud's position. Save, then battle Mud to earn it.

As an opponent (The Lost Age)
Statistically, Mud has 500 HP, 44 PP, 153 Attack, 41 Defense, 122 Agility, and 15 Luck. Like all other Venus Djinn that are fought, in terms of resistance, it has a Venus Resistance rating of 193, Mercury and Mars Resistance ratings of 100 each, and a Jupiter Resistance rating of 25, and in regards to its abilities it uses its available Venus-based attacks with a Venus power rating of 125.

Mud can use the following battle commands:
 * Briar: Used 53 out of 256 times, this is a Psynergy spell that causes a series of quite large spiked vines to grow out of the ground quickly to assault the opposition, dealing a Venus-based attack with a power rating of 70 and a range of 3. This ability consumes 11 of its user's PP.
 * Quake Sphere: Used 47 out of 256 times, this is a Psynergy spell that prompts three rectangular sections of ground underneath the party to jolt upward and retract into the ground quickly thrice in succession, bouncing each Adept three times, dealing a Veus-based attack with a power rating of 65 and a range of 7. This ability consumes 15 of its user's PP.
 * Mad Growth: Used 41 out of 256 times, this is a Psynergy spell that causes a group of thorny vines to erupt from the ground and through the Adepts for a short time, dealing a Venus-based attack with a power rating of 60 and a range of 3. This ability consumes 10 of its user's PP.
 * Gaia: Used 35 out of 256 times, this is a Psynergy spell that causes the ground beneath the enemy to open up and engulf the party in a wide reverse shower of Venus energy and medium-sized boulders, dealing a Venus-based attack with a power rating of 40 and a range of 3. This ability consumes 7 of its user's PP.
 * Spire: Used 29 out of 256 times, this is a Psynergy spell that causes a thick stalactite to fall out of the sky and shatter onto a target, dealing a Venus-based attack with a power rating of 40. This ability consumes 5 of its user's PP.
 * Attack: Used 28 out of 256 times, this is this monster's standard physical attack, but for this monster it is counted as a Venus-based attack rather than a non-elemental attack.
 * Flee: Ued 23 out of 256 times, this enemy has the ability to attempt to Flee the battle, thereby ending the battle if successful without rewarding you with the associated EXP, Coins, and the Djinni itself.

When defeated, Mud yields 360 EXP and 358 Coins, and the Mud Djinni is added to your party's Djinn collection. If you fell it with an offensive Jupiter Djinni like Waft, its rewards increase to 468 EXP and 465 Coins.

It is possible to have four Jupiter Djinn in your collection at this point, so having Summon summon Thor with them will deal over 400 damage to Mud in one blow (over 440 if she is equipped with the Clarity Circlet, meaning you only need at most two more actions to KO it in the first turn.

Analysis
General: Mud being an effect that halves  all enemies' agility ratings can be thought of as equivalent to an  effect that doubles the whole party's Agility ratings, which other Djinn  can do. However, there is one additional benefit that halving enemy agility has: if an enemy has the Break Psynergy, they can't remove their own statistical drops the way they can remove a party's self-inflicted statistical buffs. This essentially lets the entire party move before a particular boss enemy, rather than only part of the party, while the other part of the party moves after the boss' action(s)  the current turn. This can be situationally useful in letting an Adept with a group-healing effect use their healing before a boss can fell an Adept low on HP.

By game
Golden Sun: The  Lost Age: The Gabomba Catacombs can be explored - and Mud can be found - after receiving the Cyclone Chip from Madra but before entering the Lemurian Ship meaning that Mud can be acquired as early as the Aqua Hydra boss fight. Following this, up until Isaac's party joins Felix's late in the game, the bosses Mud may be used to have act slower than your group are the Serpent, Avimander, Poseidon, Moapa, and Karst and Agatio. Afterwards, the Venus Djinni Vine's ability makes it a second Mud, and all the rest of the bosses of the game may be slowed with either Djinni.

Name Origin
Mud is the end result of water mixing with dirt. The name makes sense seeing as how mud (both the Djinni and the substance) can slow down your enemy.