What's the use of blood curse corrosion runes?

It can provide continuous recovery in a near-death state.

Blood Curse is an ARPG game developed by FromSoftware, which was released in Japan on March 24th, 20 15.

Guillotines, an exclusive game on the PS4 platform jointly developed by Sony Computer Entertainment Japan Studio and FromSoftware, was officially launched on March 24th, 201May. It inherits the hardcore style of the game made by From Software and becomes a brand-new and original action role-playing game.

The background of this work is set in Yan 'an, an ancient mountain capital located in the Far East, which is inaccessible to outsiders. Yan 'an is closed and exclusive, but it is said that there is a mysterious medical technology called "blood therapy" in Yan 'an, which can treat intractable diseases from the outside. Many patients with diseases came to Yan 'an not far from Wan Li to seek "blood therapy" for treatment.

However, under the influence of indescribable forces, a plague called "animal disease" spread in Yan 'an, and people in Yan 'an inevitably became irrational beasts.