Seed of agility is a recurring item in the Dragon Quest series that permanently raises the maximum agility to whoever eats it. The amount varies from game to game. This seed can be found in treasure chests, pots, drawers and bags. It can also be stolen from or dropped by certain enemies. They cannot be bought.
Although absent from the original NES version, they can be found in the SNES and Gameboy Color remakes of Dragon Quest. Due to text limitations in the Gameboy Color remake of Dragon Quest, seed of agility was renamed to AGLseed.
In Dragon Quest IV, this seed will increase the agility by 1-2 points to the user depending on the RNG.
In Dragon Quest VIII, this seed will increase the agility by 1-2 points to the user depending on the RNG.
The seed of agility is a rare item in Dragon Quest IX. It can be acquired as a reward for certain quests, or as a rare drop by Killing Machines. The chance is 1/256.