About Kindred being "...actually real?"

"Well, that's for the dead to know." - nice but, what if we had champions that nearly died have a special line for Kindred ingame?

The obvious example you thought of being Gangplank. He could have some lines hinting that he met Kindred,

"I had a dream... Or was I just counting Lambs to go to sleep?" "I think we've met before... haven't we?"

Kindred response: "Hmm... K... if you say so." Wolf whispers to Lamb: "He's onto us."

So we would have confirmation of his form through champions who saw the Lamb at the end of the tunnel c: