User blog comment:Willbachbakal/(Item Concept) Another Look at Jungle Items/@comment-7709681-20140630041607/@comment-1330314-20140630151733

I actually wanted to go completely in the opposite direction here: by making exclusive to the  item line, the item would have to cater to autoattackers and autoattackers only, so it wouldn't do anything for abilities at all.

On the other hand, if you want an effect that works on abilities, you'd want to pick Glowing Ember, whose Incinerate effect applies upon dealing physical damage to monsters (including from AoE abilities) and whose restoration effect stacks. Alternatively, Infesting Mushroom would have both the damage amp and the sustain from the Butcher passive, allowing you to sustain right off the bat as a mage.