Assassination Rogue Frequently Asked Questions — Battle for Azeroth (BfA) 8.2.5

There is currently no breakpoint which is required for Assassination, nor is there a realistic value which causes Haste to become useless on single target.

In Battle for Azeroth, your bleeds now scale with Haste. This lets you generate more Energy through Venomous Wounds.

Yes. Once we are able to maintain high energy-levels through applying DoTs on multiple targets, Haste plummets in value. Critical Strike gains value due to the interaction with Fan of Knives and Seal Fate.

The DPS differences between the races are fairly minimal. The best races for DPS on Horde are Magh'ar, Troll and Blood Elf. For Alliance, Human, Dwarf and Gnome are the best. When running Shrouded Suffocation Night Elf becomes the strongest Alliance race, especially for Mythic+ content.

Generally that depends on the rest of your gear, due to how secondary stats interact with one another. When it comes to comparing Azerite pieces, it becomes even more convoluted, as some of the traits have non stacking effects, such as percentage-based proc chances or duration increases, thus making it even harder for you to estimate; as such you are generally better off using sims to compare pieces (and in Azerite's case compare multiple trait combinations for each piece), in order to find the best option for you.

We have a guide on how to sim yourself here:

Currently the go to Azerite traits for raiding are Double Dose and Nothing Personal. You will also want to get as many Overwhelming Power as possible.

For m+ you will want to get a combination of Echoing Blades and Shrouded Suffocation.

Currently there are no established breakpoints to follow, and since as you gain one stat it slowly loses value while other gains it (relatively), you do not want to sacrifice all of your other stats in order to hit a magical number in one of them.