Whirling leech is a passive item in Preyn's Collection, a mod for The Binding of Isaac. It is part of the Sewage Collection submod.

On pickup +1 empty Red Heart container.

While held Getting hit spawns 3-5 friendly blue leeches.

Worm-like enemies will be weakened to 5 HP or lower and spawn blue leeches upon death.

Copies of the item multiply the amount of blue leeches spawned, up to a limit of 25 leeches.

Part of the Sewage Collection mod.

Whirling leech can be found in the following item pools:

The following tags are applied to this item:

• Check out the item description on the mod's external Wiki.
• Download Preyn's Collection from the Steam Workshop.