-Passive that gave 3% hp scaling on burst was changed to: Ayato now generates 2 energy per second when he's not on field, to a maximum of 40.
-Burst got +20%~ scaling on level 10, last 3 extra seconds (1

and now buffs 20% normal dmg instead of 12% atk speed. (technically a nerf for raiden teams).
-His c2 got slightly buffed (50% more hp after 3 slashes) and his c4 gives allies 15% atk speed instead of 20% normal dmg. Ironically, since he lost the hp scaling on burst, his c2 doesnt help his burst now. It's still there on skill.
-His sword was changed from getting 8x5 stacks on ally normal dmg to 2x20% stacks on ally skill cast. This means any basic rotation will give the sword holder 40% normal atk dmg, making it very easy to use.
-lvl 90 stats changed to 299 atk (buff), 13700~ hp (buff) and 769 def (nerf).