[Gameplay] Kalista & Deaths Dance

Shouldnt Kalista's Rend heal from Death's Dance? Because it doesn't. I'm pretty bad at Kalista, and decided to give it a shot in a bot game; trying different items. So, when it was finally Death's Dance turn for a go around, which mind you I was extremely excited by the concept of healing for Rending, but something was strange: I wasn't quite healing all that well, but i brushed it off assuming it was because my HP was already too full. And so I fought Baron an intense enemy which i could not hope to outheal, I had had 30 spears embeded into his throat, and when i was ready to suck those sweet, sweet juices of youth from his body; I ended up coming empty handed. All i sought was to parch my scorched throat... but was disappointed. Now i will remain so ferverently thirsty and can never hope not only to quench my throat, but also my desire to fulfill my hopes and dreams of not feeding as Kalista.