Priest talent · row 5 of Shadow, from level 30 (25 with Talented 5/5) · Shadow

Silence

225 Mana20 yd range

Instant45 sec cooldown

Silences the target, preventing them from casting spells for 5 sec and interrupting their spellcasts for 3 sec.

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

Compared with Classic

Classic tooltip

Silences the target, preventing them from casting spells for 5 sec.

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

Matches the files
Silence: No longer requires Improved Psychic Scream as a pre-requisite.
The files No talent edge leads into Silence in 70245; in Classic it required Improved Psychic Scream.
Silence Class deep dives: Priest and Warrior

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