I saw this at the 5.4 patchnotes:
Item - Dragon Soul Legendary Daggers Your melee attacks have a chance to grant Suffering, increasing your Agility by 2 7, stacking up to 50 times.
Item - Dragon Soul Legendary Daggers Your melee attacks have a chance to grant Nightmare, increasing your Agility by 5 17, stacking up to 50 times.
Item - Dragon Soul Legendary Daggers Your melee attacks have a chance to grant Shadows of the Destroyer, increasing your Agility by 17 57, stacking up to 50 times. Each application past 30 grants an increasing chance to trigger Fury of the Destroyer, which immediately grants 5 combo points and causes your finishing moves to generate 5 combo points. Lasts 6 sec.
The proc results into a 2850 agility from 850.
What do you think, legendary daggers will be the new legendary item for rogues in 5.4?
/Speculation mode on