Rogue ability · learned at level 34 · Nature

Blind

30 Energy10 yd range

Instant5 min cooldown

Blinds the target, causing it to wander disoriented for up to 10 sec. Any damage caused will remove the effect.

Game files · build 1.60.1.70291Read straight from the WoW Forever beta client.

In Blizzard's notes

What Blizzard said about Blind, each line checked against the files.

Matches the files
Dirty Tricks: Formerly Improved Sap. Moved from row 4 up to row 2. (Redesigned.) Sap never breaks Stealth now baseline. Instead, this talent reduces the Energy cost of Sap and Blind by a substantial amount.
The files Dirty Tricks (1224782) is Subtlety row 2 and cuts Sap and Blind Energy costs by 25/50% (Sap 65, Blind 30). Improved Sap, Classic's row 4 talent with a 30% chance to restealth, is gone, and Sap's tooltip says 'Does not break Stealth.'
Dirty Tricks Sap Blind Class deep dives: Rogue and Warlock

69876 Sep 16First beta build we archived. No changes in the client files since.