User blog comment:Willbachbakal/(Champion Rework) Cassiopeia, the Serpent's Embrace/@comment-12443575-20150714140558

>The heal and percentage mana refund are multiplied by 10 if Treacherous Bite kills an enemy champion. So, last hitting an enemy champion restores 100~500 health? Also, E's cost, range and cooldown highly suggest to use this ability for farming, restoring a lot of health and mana for every minion and not even having to poison them beforehand. I can think of a better way to implement this ability: make it have a low(ish) base damage, but a high damage increase for every poison stack, making it somewhat similar to and probably more fitting.