Small enough to fit under a large hat or a deep pocket, and light enough to be carried around without difficulty, Seedot were among the most valuable tools of the shinobi in the golden age of ninja. Although most of the techniques they learn are useless against human soldiers, let alone militarily trained pokemon, a Seedot kept small long after their brethren evolve into Nuzleaf learns two enormously valuable attacks for a ninja's mission of spreading chaos. Not only can they intensify sunlight, blinding enemies and feeding fires, but they can also explode in a giant cloud of light, giving their trainer ample time to escape after an attack.
Many of the ninja would even carry two or more Seedot for extra ease of disappearance, although this carried risks; a famous ninja thought to be extremely overweight was once caught when a Seedot fell out of his armor, and after capture, he was revealed to be a thin man who appeared otherwise because he had stuffed his clothing with ten Seedot. In time, the smoke bomb and the pokeball gave the ninja better tools and bigger explosions, and Seedot's role as the ninja pokemon faded from public memory.
Today, Seedot are absent from the tall grass of Fuchsia City, unused by its gym leaders and unseen in the trees above. They are known as the acorn pokemon, depicted as falling out of the trees from which they once kept watch as sentries, for no reason other than to hit people on the head. There are those who say they remain watching and training, learning hidden tactics more valuable than Explosion, but have become a secret weapon too zealously concealed for any but a skilled shinobi to notice even their presence.