Harvester Open Vein Mode

Transfusion costs 20% maximum health, heals for 110% of normal, and splashes 15% of effective healing to two other injured allies within 220 units. Spending Stolen Life with Harvest Wave heals up to three nearby injured allies for 4 + 30% Wisdom + 5 per spent stack each.

Nothing in the game currently grants this. It may be unused content, or reachable only through a system this wiki cannot see.