Inspiration Keystone Concept: Visionary

Visionary (Inspiration)

• Whenever an enemy champion leaves your normal vision, you gain obscured vision of that champion for 2 seconds. (i.e., a red silhouette, similar to an Oracle Lens)
• Whenever you land a basic attack or ability (excluding damage-over-time) on an enemy champion, reduce your Trinket cooldown by 1 second and increase the duration of any of your active Wards by 1 second EDIT: pause the timer of any of your active Wards or Lenses for 2 seconds.
• The placement range of your Wards is increased by 20%, ~~and the vision radius of all of your Wards and Lenses is increased by 20% while you are within 1000 units of it. ~~ EDIT: the vision radius of all of your Wards is increased by 50% if you are within 200 units of it.

In response to the many recent vision nerfs, this is a vision-focused keystone that improves your ability to track the movements of your enemies and keep wards up on the map.

Momentary obscured vision allows you to see the location of enemy champions after they leave your sight as well as the direction they are moving, letting you get an rough approximation of where they are headed as well as opening up the potential for landing skillshots on enemies trying to leave or hide in a bush.

This keystone also rewards you for staying in combat with enemy champions, letting you increase the duration of your wards and cut down on their cooldown by trading blows with your enemies. This increases your vision uptime considerably.

Finally, you would be able to place Wards a bit further away than other champions as well as increase their vision radius if you are relatively close to them. An Oracle Lens is always on you, so it would always benefit from the increased range.

This keystone doesn't provide any direct combat benefit, but would give you a lot of additional information if you are smart with your ward placement and keep eyes on your minimap. This is geared primarily towards support champions due to their focus on vision, but would also be useful for ADCs since it lets them place wards at a safer distance and help their support with vision more, and for junglers, as they extra uptime on Oracle Lenses gives them more vision control and opportunities for surprise ganks. Any squishy, immobile mage who needs to have vision control around the river would also get a lot of use out of this rune.

EDIT: I really appreciate all the feedback! I've made a few adjustments to the concept to try to address a few issues people had with it.

First, the trinket CDR was very strong, especially combined with the increased uptime. The additional wards would make it a must-pick in pro-play. I've changed it to instead pause the duration of any active Ward or Lens for 2 seconds. This increases the uptime of the wards you have placed, but doesn't give you the opportunity to move up your vision. This improves the wards you place in the laning phase significantly, since they are relatively static, but doesn't let you place any extra wards over the course of a game.

Next, I've adjusted the vision granted by standing close to your Wards. The old version basically needed you to stand inside the radius, which would give you a rather big area to work with. This updated version makes the vision radius much bigger, but only if you stand in a much smaller area. Basically, the effect is that you stand on top of a ward to add your vision together. The amount of vision in terms of area coverage is roughly the same if you stand on top of a ward, or are standing totally outside of its radius.