User blog comment:FurryYunSeong/(Custom Champion) Gregor, the Darkness Druid/@comment-4031900-20130522014202/@comment-3142744-20130523000724

The idea behind Black Illusion was to have a sort of damage-over-time deal. I agree that it is definitely too powerful even at half strength, now that you mention it.

Since Gregor is terribly unlikely to build AD, having the enemy-cast illusion scale off of him rather than his enemy should prove more useful (and also lend itself to interesting side-builds). The ally-cast one is attackable but that's still a big damage boost, and since it also acts as a shield, its defintely too powerful with .5 scaling.

Appreciate the observation.