Willing Whip is a passive feature that grants resistance to Necrotic damage but deals Necrotic damage to every creature nearby.
Description
Grants 
Resistance, and deals 
Necrotic damage to everyone nearby including the wielder.
How to learn
Granted by the weapons:
Notes
- Due to the Resistance granted by the weapon, the wielder takes only 1~3Necrotic damage. However, nearby allies take full damage.