WoW Forever · Rogue talent · row 5 of Assassination, from level 30 (25 with Talented 5/5) · Physical

Venom

Causes your Shank ability to increase your Poison damage by 30% and your chance to apply Poisons by 20% for 6 sec.

Game files · build 1.60.1.70790New in ForeverRead straight from the WoW Forever beta client.

In Blizzard's notes

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

Matches the files
Venom: New 31-point gold medal talent. This new 25 Energy Finisher ability grants 30% increased damage to your Poisons and 10% increased chance to apply Poisons. Duration determined by number of Combo Points spent. Our expectation is that Assassination focuses its finishers on maintaining Venom and Slice and Dice, and damaging finishers like Rupture and Eviscerate are a lower priority. Other Rogue builds would put more emphasis on those damaging Finishers.
The files Venom (1310703) needs 30 points (Assassination row 7, after Mutilate), costs 25 Energy, raises Poison damage by 30% and Poison apply chance by 10%, and lasts 9 to 21 sec by combo points (tooltip). The finisher priorities are design intent.
Venom Class deep dives: Rogue and Warlock