User blog comment:ClayHuang158/Necrius/@comment-1330314-20161015161628

There's a lot to this kit that I like, especially the Spirit Essence engine. I also really like the idea of a more support-ish battle mage, which League hasn't really had since pre-rework Karma. However, I think you could develop on Spirit Essence a bit more, and some parts of your kit could be a little bit more interesting. Here are my thoughts on Necrius's kit:
 * Spritual Essence looks like a fine passive, and the percent health heal works great with a battle mage. Perhaps this could be refined a little, so that standard enemies always drop a Spirit Essence on death and champion takedowns drop more Essence, but that's not drastically different from the model you're proposing.
 * I like the Soulless debuff effect, and I think Abate could work well as a point-and-click slow, but I'm not a fan of its initial damage. I'd remove the damage from Abate's active completely, and instead buff the Soulless debuff. Considering how Necrius is meant to synergize with allies, perhaps any allied champion basic attack, on top of his own, could deal the bonus magic damage? If you really want to keep the percent health damage, I'd also move it onto the on-hit effect.
 * Rejuvenation isn't a bad effect per se, but I feel it's kind of made redundant on a kit that already has a shield and a self-heal. I like how this consumes Spirit Essence for a more powerful effect, and I'd pick a different kind of non-heal utility to work with this.
 * Imbued Ground looks fun and versatile. The only thing I'd possible criticize would be the mana consumption when shielding allies, since the resource Necrius is supposed to be consuming here is Spirit Essences, and I also think the main active should be cast without Spirit Essences, since only the reactivation consumes them, but that's relatively minor.
 * Psyche Attack is perhaps my least favorite ability here: while the active itself isn't bad at all, and might be perfect for another champion, here it doesn't seem to do anything too exceptional. Personally, I'd go with some other powerful effect, like a Spirit Bomb-type ability or the like.

Overall, I like Necrius's kit a lot, and some of his abilities look like very refined design (his E, especially). I think you have a good gameplay niche and some interesting effects. There are some things I'd refine here and there, and perhaps you might want to flesh out his theme, but otherwise this looks excellent. Congrats!