Bard's E change/buff

So, not sure where Bard stands power-wise; I feel like he's still not a viable pick, and he needs another buff or two, but then again, I literally played him once, so I can't judge.

Whether he needs the buffs or not, I thought about what could be done about him, and this is what I came up with; do with it what you will...

So, magical journey. It's definitely a unique skill, but I feel it isn't useful enough to "warrant" a skill slot, if you know what I mean. So, how about we make it better, as in more versatile, as in; keep all of its current uses, and add more on top?

New magical journey: Bard opens a one-way magical corridor through the first piece of terrain in front of him through to the other side. Both allies and enemies can use the corridor by right-clicking on the corridor. Furthermore, Bard can reverse the corridor by clicking on the exit. Any champions in the corridor start moving to the new exit immediately

(I literally copied the text from the wikia, and changed/added what I wanted to change)

Idea? Open up more plays/options with the portal. You're in a bad spot? Journey away, and reverse the portal. Bam. Safety. Your ally is being chased? Journey to him, reverse the portal, you both go back, reverse the portal again before the enemies go through. Not only are you both safe, but you can also go back in if you feel brave/if you have backup

...not sure if this would be too good, but that's something that can, if necessary, be further tweaked by changing the cost/increasing the cooldown/somehow. So far, I want to hear opinions on the idea, the concept. So? :)