Shen Q- add more utility

Sometimes I think.. wouldn't it be nice if Shen's spirit blade would actually illuminate a small area, both enemies and allies?

I don't think it would be a major buff, but it allow shen to use his Q more thoughtfully rather than just wait/position yourself for an enemy to cross between him and blade for additional damage/slow. It would provide him more utility with his Q mid/late when team fights happen. Think of it as an indestructible ward that he can position in tri bushes , dragon pit, etc while also revealing his position to enemy team.

Thoughts?