Two problems with the weapon that I would like to see amended.
Problem: No AoE whatsoever.
Suggested Solution: Necrotic Bite (third stage of auto-attack) hits up to three adjacent targets. Also helps with life force generation.
Problem: Melee weapon with no gap closer, Dark Path unreliable.
Suggested Solutoin: Dark Pact becomes a toggled skill, with the second skill teleporting you to your victim. Sorta like a reverse Shadow Strike.