I was playing as and i minimized while he was charging at me. It slowed him but it didnt interrupt his charge so he just crashed into me and stunned. As i remember minimize interrupts charge but im not sure about it. Was it a bug or it is working like this ?
miniaturization makes one unable to use items and skill and slows him to like 100 ms if i am not wrong. But rampage already casted the spell, didnt have to use any items and is unslowable at 4+ charges. I think it works like that ^_-