@Shadowpunkz
Haha thanks xD, liked and subscribed to you bwahaha~
Anyways back to the topic, yeap I think there's certainly a lot of potential with Rakan (I'm even think that it could work on other lanes/jg due to engage potential). Having mobility and AOE CCs are really really good, can't imagine if neither one are banned in ranked games (had a game like that but too bad nobody chose Rakan to pair with the Xayah).
@Darth Dracula
I've actually never bought knight's vow before (or maybe I did once and didn't like it). I know that there were some changes but I'm unsure if it's worth the buy.
On a side note, does Rylai re-apply when you run into the same champ again (like after charming, then you run back in again)?