Kah zix and deaths dance

So I was playing the new busted Kah'Zix in norms and got fed cause im Kah'zix. Anyway i was very far ahead and i bought Deaths dance to give me a shit ton of lifesteal and thought of a great idea to see if i can solo baron. I went to try to solo baron to only find out that whenever i Q'ed the baron it wouldn't proc after the first time, like id get a big heal from the first Q then after than I wouldn't get any heals from deaths dance and my q.