Revised GURPS Magic for DF Felltower: Steal Vitality

Here is a proposed revision to Steal Vitality.

Steal Vitality

As GURPS Magic, p. 150, until the last sentence. Change everything from ". . . or when the subject's HP reaches -1" to "or when the subject's HP reaches -1 or less."

Otherwise, as written.

Rulings: HP do multiply - healing is healing. SM matters - a positive SM multiplies the time taken by 1+SM, minimum 1.

Note that this means healing from foes you've beaten into submission is effectively impossible - they need to have at least 2 HP left to drain. Like poison, draining from bigger foes takes longer. I'm sure of the logic except that it amuses me and makes it more interesting.