User blog comment:Emptylord/Blogs/Reworked Summoner Spells (2015)/@comment-5588011-20150516211508/@comment-3974211-20150516233046

I have an alternative solution to stacking - however, the issue with these spells isn't learning how to queue CC. Even in premade games it's not uncommon for you and your ally to both exhaust the same target at the same time, effectively wasting one - and in solo queue you can't even pretend that communication is an option. The alternative is to make the target's invalid if they're already affected, at least for a short window (like a grace period). I previously had ignite's damage stack cumulatitively (like Wicked Blades), but I decided you'd just get teams of 5 ignite one person intentionally to stack them rather than it being incidental.

Clairvoyance is currently never used - ever. Even Clarity sees gameplay in other modes. This is just one idea - maybe not the best one, but I moved existing clarity to Farsight Orb. Similar to your effect, how about "All allied champions gain unobstructed vision for 5 seconds" (so see over walls and into brush), possibly with increased sight range. I don't think it would ever become compulsory, though, not when exhaust is still infinitely more useful.