The HUD element for Kayn's passive needs a major overhaul. It desperately needs clarity.
The current system is very counterintuitive, and if you don't know how Kayn's passive works, there are numerous misunderstandings you can have about what it means, because there is no visual indication of how it's actually behaving. For something that has such a huge impact on Kayn's gameplay, this lack of clarity is a major issue and needs to be acknowledged.
Here's how Kayn's passive works:
- There are two separate essence counters, one for Red and one for Blue.
- Whichever essence counter fills first determines the form that Kayn can transform into first.
- Bars fill faster as the game goes on.
- Whichever bar is filled with the most progress is displayed as the white bar.
This bar is extremely easy to misinterpret, and I've seen misunderstandings in the past that I had no answer to before but make perfect sense now that I know how the transformation actually works.
Rather early on, I remember seeing a thread that said something to the effect of "Kayn's passive doesn't transform based on which champ type you hit more, but which champ type you hit when you finally transform. Is this a bug?". This was grounded in the assumption that both types of essence added progress towards your transformation (with progress tracked by the white bar), and whichever essence you collected the most of determined your transformation. With this mindset, it could easily appear to be a bug, as you can camp melee champions early and fill a large portion of your bar with Red essence to transform into Rhaast, then kill a ranged champion two times in a row later in the game and get Shadow Assassin as your initial transformation.
Of course, now I understand why this person observed what they did: When you earn your transformation, you are going to transform into the form that correlates to the champion you hit last, not because of a bug, but because you transform when you fill one of your two bars, and you can't fill a bar for a champ type that you aren't attacking.
Solution: Kayn's passive indicator needs to give users a very clear understanding of what is going on behind the scenes at a glance. There should be two separate bars, one for red and one for blue, that fill independenty. When a player attacks a ranged champion, they should see the blue bar fill, and likewise for melee champs and the red bar, and when one of them completes, it should be clear that the bar that was filled was tied to the transformation that was unlocked first.