Blinded by dps

[Royce]

Bonus damage is unrelated to Crit. Crit for weapon attacks and skills is 200% unless otherwise specified by a skill. Otherwise, as you say, crit damage increasing skills would already be useless since end game you should have over 250% bonus damage. Bonus damage is just the affect your primary attribute (Dex for rogue for example) has in your damage. I honestly think they'd be better off hiding that stat from the display since it's more confusing than helpful.