PC - Plagueborn Bow +15%^50 & Vamp5/-1

Hi everybody,
I would like to have a Pc on that bow :

Vampiric Plagueborn Recurve Bow
Piercing Dmg: 15-28 (Requires 9 Marksmanship)
Damage +15% (while Health is above 50%)
Life Stealing : 5
Health regeneration -1


Thanks

around 35-50k