Probably the best thing I love about Tahm already

>W: Devour

>Allied Champions: When Tahm Tahm Kench devours an allied champion, he renders his ally immune from damage and gains extra movement speed when he heads toward enemy champions.** Both Tahm Kench and his edible ally can choose when the latter leaves.**

You can't change when he devours you, but at least you have the power to hop off the ride. I like that. That's healthy interaction to me without blatantly copying something like Thresh's lantern.