No need for life tap spam anymore
Heres a change in 1.12 that was made after the release of PTRs. Perhaps this will give new angles to the 'Does Lifetap cause threat?' debates I've been seeing as of late.
# Life Tap: This spell now benefits from effects which increase your spell damage. At rank 3 and above, the base amount of health lost and mana gained will increase by 80% of your bonus spell damage effects. Talents and items can further modify those values. Rank 1 and 2 receive reduced effect.
Thoughts?