New unique champion skills

What different skills did G&B think of that haven't found a particular role, or match a particular skillset?

for example: E - the champion becomes untargetable for .5/1/1.5 seconds. While untargetable said champion may move, use summoner spells, but cannot AA or cast other spells. The champion is still visible but would become translucent in the duration. skill shots used on the champion would pass through them. ~11-18 second CD. -maybe add a increase/decrease in MS.