Warlock · Destruction · tier 1 · from level 10

Improved Shadow Bolt

+340 Bane of Doom

5/5 · level 60 · per cast · after a Shadow Bolt crit · and 10 more

Improved Shadow Bolt 12345

Rank 5/5

Your Shadow Bolt critical strikes increase Shadow damage taken by the target from your attacks by 20% for 12 sec.

Bane of Doom +340 Bane of Agony +108 Death Coil +89.9 Corruption +85.6 Drain Soul +82.1 Siphon Life +80.1 Shadowburn +53.4 Shadow Bolt +52.4 Drain Life +49.8 Wrack +42.2 Inferno +39.1

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.