Warlock · Affliction · tier 1 · from level 10
Improved Life Tap
Improved Life Tap
Rank 2/2
Increases the amount of Mana awarded by your Life Tap spell by 20%.
Doesn't change the damage or healing of any Warlock spell.
Averages, counting crits and misses, for a level 60 Warlock with a typical weapon and no other gear or buffs, against a target your level. Worked out from the game's own data, the same way as the Foresight addon.