Talk:Nocturne/@comment-5489694-20140126174745/@comment-5514182-20140128030530

At Level 18 with those items, Dusk Bringer Attack Damage, Scaling AD Runes and 30 Points in the Offense Tree, you should have 306.24 Attack Damage.

Multiplying Favorably, this adds up to a maximum of a 864.8 Crit with every % increase mastery I could think of, with the Bonus Damage from Umbra Blades.

Now factor in a target with 0 armor (say a caster minion or something) and your 20 Armor Pen, this ends up being a 1081 Crit.