Chapter 71 - Slimes

With this ability, Rem could actually heal himself from any sort of critical damage but of course to regenerate his slime hand – he had to focus large amounts of magical energy into regenerating the lost part even as he covered it in slime, so while the ability was insanely overpowered, even Rem couldn't keep spamming it forever – there was a limit to the amount of magical energy he could dish out.