Warlock · Affliction · tier 3 · from level 20

Pandemic

+29.4 Bane of Doom

3/3 · level 60 · per cast · and 6 more

Pandemic 123

Rank 3/3

Increases the critical strike damage bonus of your Corruption, Bane of Agony, Bane of Doom, Drain Soul, Drain Life, Siphon Life, and Wrack spells by 100%.

Bane of Doom +1.7% +29.4 Bane of Agony +1.7% +9.3 Corruption +1.7% +7.4 Drain Soul +1.7% +7.1 Siphon Life +1.7% +6.9 Drain Life +1.7% +4.3 Wrack +1.7% +3.6

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.