Does the blood source curse the old hunter and beast with a meat cleaver?

The saw blade series incendiary bombs and gems (dropped after killing Bishop Aries) with increased attack power on beasts are very good as auxiliary weapons against weak fire monsters and beast enemies. Personally, I think the saw blade spear is better than the saw blade knife ... After all, both forms of saw blade spear have attack bonus to the beast enemy, while the saw blade knife only has folding form. ...