Wingmould

"A fly-like construct formed of white shell and a dark liquid interior. The bugs of Hallownest believed that their King created this world and everything in it. For what purpose, I wonder? Were his subjects companions, or toys, or children? Such a mind seems unknowable."

Wingmoulds are enemies in Hollow Knight. They are Void constructs made by the Pale King for an unknown purpose.

Behaviour and Tactics
Floats in place, dealing damage upon contact. Splits apart when hit, before reforming and regaining all health. While in this state, it does not deal contact damage, nor can it be attacked.

Wingmoulds can be both helpful and hindering. They can and often must be used as pseudo-platforms for nail-jumping or as infinite sources of SOUL since they cannot be permanently killed but give some SOUL every time they are hit.

Attacking a Wingmould counts as one kill for their Hunter's Journal entry.

Location
This enemy is found only within the White Palace.

Trivia

 * Wingmould technically has a health value of 999; however, this value is reset every time it reforms, making it have effectively infinite health.
 * This also makes it the only "invincible" enemy that can actually be damaged, rather than blocking damage or having no hitbox.
 * Although "invincible", if the player changes the Knight's damage values, they can actually be killed.
 * Once killed, it will burst into infection (even though they are not infected) and a Crawlid corpse will drop, along with
 * The Wingmoulds loosely resemble the Mossfly.

References

Крылень Carcasa_alada Skrzydlaty Model