Websolo play mode's plot is based on the first season of the demon slayer:
Kimetsu no yaiba anime series and demon slayer:
Webdemons exhibit prototypical powers such as enhanced strength and speed, heightened senses, and powerful regeneration.
Some also display higher abilities known as blood.
Webin demon slayer, upper moon four hantengu has the ability to manifest seven clones.
Here’s a look at their varying personalities and powers.
Weball strenghtened, some people use blood soaked on their cloak for 1. 15x life steal and vamp.
But as far as i can tell, it does not work with syphon.