Cruse of Killing + Curse of Leeching

Curse of Killing - When dealing damage with this item and or dealing damage while holding an item with this curse, you take a small amount of damage.  The damage taken is dependent on how much damage is delt and this counts for non playable characters only.  (Villagers, dogs, cows, zombies, blazes, etc.)  

Curse of Leeching - If you die while an item with this curse is in your inventory, you respawn at half health.  The curse does not go away unless the item is destroyed.  (Meaning dying wont end the curse.  Destroying th item will prevent you from getting the curse effect again.) 

Thoughts?