Guild Wars 2

Question: Does this trait still work against enemies who have a breakbar? Since it’s semi negated and the cripple is not actually crippling the enemy, yet the condition is still on them, just not really affecting them except very slowly lower their bar.

PS: The trait is +10% damage to crippled foes

Yes it is, if the cripple condition appears in their “condition bar” than the trait kicks in.