General Grievous and IG-100 changes are self evident, they are just terrible. Mostly Grievous but they needed to have synergy. HK-47 was one of the best and oldest assassin droids ever so he needed something that makes him feel like an assassin droid. Superior Firepower now feels "superior", Meatbag Mayhem now has more "mayhem", and his Assassin Protocol now benefits the new Assassin Droid Tag as well by dealing extra damage and healing for double that amount. Reconstruction also got a buff because it was terrible and he died in 1 hit after he revived and he almost never got a turn after that. And finally for HK he got something that makes him feared as an Assassin Droid. It's basically a combination of fracture and deathmark, but much weaker than either of the 2 and is applied for longer the more times you damage that enemy. IG-88 received slight buffs to his outdated basic attack and AOE attack, and a buff to his leader ability to make it usable with scoundrels and bounty hunters. Finally for his Adaptive Aim Algorithm it got a major boost and gives half the effect to ally droids. IG-86 got a slight boost to his basic attack and massively increased his Assassin Droid Tactics by allowing it to call all Assassin Droid allies to assist as well. His Droid Squad Tactics also got a moderate boost by giving him stats for each Droid and Assassin Droid ally.