Mushrooms

The Mushrooms are the personal summons of Dokushin Kamizuru. They are of artificial origins, having been mutated from normal mushrooms directly into sapient-sentient mushrooms by Dokushin himself.

They reside upon the bottom of the Floating Bridge of Heaven (Romaji: Ama no Ukihashi) where their growth is carefully monitored by Dokushin.

Uses
The spores that can be produced and discharged by the mushrooms are disproportionately high in spiritual energy. As a result of such, the spores make PERFECT fuel for the Immortal Fires of Samādhi. Thus Dokushin often summons the mushrooms as a means of maintaining and or augmenting his Immortal Fires of Samādhi.

Those same spores are also fully capable of ensnaring those that inhale them into an illusion, thus also allowing Dokushin to use the mushroom as a harmless means of dealing with children whom he absolutely refuses to harm.

Last but not least, the mushrooms themselves are incredibly stealthy. Thus they are useful for espionage purposes as well.