30% increased Minion Damage if you've used a Minion Skill Recently
Minions have 12% increased Attack and Cast Speed if you or your Minions have Killed Recently
Minions have 20% increased Movement Speed 
Puppet Master is a Notable Ascendancy passive skill for the Necromancer that grants increased movement speed and duration to minions. It also grants increased minion damage if you have used a minion skill in the past 4 seconds and grants your minions increased attack speed and cast speed if you or your minions have killed an enemy in the past 4 seconds.