New Summoner spell(s)?

Just throwing random thoughts out there to see what others think and would appreciate if anyone else who has ideas for summoner spells, could reply it in this post so we can hear other peoples idea's for possible changes (ideas) and/or new spells. I have thought of a few ideas in the past (seen in the link above. I mention ignite doing 500 damage, but I was just Guesstimating, and my previous name was NextGen Delta).

My new idea for a summoner spell is to have one that makes you invisible for 1 second. I can see how it might make some (actually I would say most) champions pretty damn op, like and many more. I feel like it would add strategy, because you would need to be more reliant on knowing champion ability cool downs with or without CDR which would help you be more in-sync with your team, and be aware of the opposing team.

An example would be you're going against Leblanc, and you know she has 2 dashes plus a flash (debatable), and you need to know and pay attention to when she last used any of them if you saw them recently. Then you would know how long you have to get her, or stay away from her if her cool downs are back up. What I'm saying is let's say shes in a bush, and can use "Cloak" to walk out for 1 second unseen to get to a wall and use distortion/mimic (or flash) over it. Or she could use "Cloak" to go invisible for 1 second so you don't see her when you go to put a ward down, and then burst you when you closer and have a harder time getting away.

Maybe this would introduce a cheaper "Pink Ward" (would cost the same as a normal ward of 75 gold) that may go invisible like a normal one, but only for about 45 seconds or less because it's pink? I don't know, just an idea.

If you agree/disagree in anyway, have additional ideas for it, or a new change or summoner spell of your own, please comment it below.