The Revenant's shared reserve for protection, attack costs and time in Shroud. Capacity: 100; a run or new map starts with 45.

Outside Shroud, direct gun damage actually dealt adds 0.03 life force per damage; critical hits multiply that gain by 1.6. Overkill does not count.

Outside Shroud, an enemy dying within 15 m adds 3 life force. Siphon also builds the reserve.

In Shroud, Reaping Harvest and Soul Splinters can return life force after attack costs.

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