Ravenous Horde

Minions have 30% increased Movement Speed
Minions have 30% chance to gain Onslaught for 4 seconds on Kill [1]

Ravenous Horde is a notable passive skill that grants increased movement speed for minions, as well as a chance for minions to gain Onslaught on kill.

Anointment

Blight anointment to unlock the passive:

Oil #1	Oil #2	Oil #3	Outcome
Verdant Oil	Silver Oil	Golden Oil	Ravenous Horde	Minions have 30% increased Movement Speed Minions have 30% chance to gain Onslaught for 4 seconds on Kill

Version	Changes
3.16.0	Make clusters more unique compared to each other as well as having a more clear identity. Remove niche or unneeded stats entirely, or shift them to Masteries. Improve many notables that have had secondary stats removed. (Undocumented): Now grants Minions have 30% increased Movement Speed (up from 10%). Now grants Minions have 30% chance to gain Onslaught for 4 seconds on Kill (up from 10%).
3.9.0	Now grants Minions have 10% increased Movement Speed (down from 20%).
3.8.0	Introduced to the game.