Empowered autos not proc'ing on turrets
EDIT: FurorDivinus27 answered this for me. Thank you, sir.
Noticed that Rumble's 30% AP as extra magic damage on hit from overheating doesn't work on turrets. This doesn't apply to all empowered autos, as Vi's, Jayce's, and Jhin's work just fine. Can someone tell me/link me a place where I can figure out whose empowered autos work on turrets, and whose don't? This should really be noted in the skill tooltip, as it's not intuitive.