Scattershot

When to use it

The point-blank get-off-me button against melee closing the gap, and the tool for breaking a focus-firing team. Its value rises with map difficulty. A second source is blunter about what it is for: utility rather than damage, pressed after the target dodges and never into a super-armour attack — and it is the one route a Blackarrow has to force an opponent to spend their Breakaway, via a light stagger into it.

Builds using this

• Blackarrow — full-draw ranged — Legacy Gaming explains it at 13:30
  The alternative utility pick, with a warning attached — it is an instant knockback, not a damage skill, and treating it as damage is a mistake.
• Blackarrow — PvP Kiting — thelorr explains it at 04:52
  Close-range follow-up in the demonstrated kit. Missing it does not justify staying in a failed engage.

Where this comes from

Legacy Gaming — Ultimate Blackarrow Class Guide — opens at 09:14, where the skill is explained.

A second source describes it independently:

• Rebrrth — The Ultimate Guide to Black Arrow — at 21:00