In hindsight, this skin reminds me more of Yasuo's skin not chroma.
Edit: Now that I think about it Rito cannot make chromas for Kayle for one simple reason; her skins are mostly recolors anyways which means that they would be putting as much effort into making a Chroma for her as they have in the past for a whole new skin...
js.
Ex.s Virdarian, silver.
No reason to make a chroma pack for a champion who already has 2/3 of the colors in the pack released.
AND because Silver Kayle, Judgement Kayle, Riot Kayle, and Unmasked Kayle are all "unavailable"(yes I know you may purchase SOME of these skins via events some times as well as through mystery gifting and other methods, you may not however simply purchase the skin when you desire) to purchase in the store it severly limits the skins which Kayle is able to receive a Chroma to one of three; Virdiran Kayle (problem with this above), Battle Born Kayle; (Cool idea but what would they recolor, her gems and tabard? Kind of booring) and Aetherwing Kayle; Kayle's most expensive skin, Aether Wing Kayle (adding another 750 RP to the already high price of 1820 RP for a grand total of 2570 RP OR just shy of $20 USD which is hella expensive for a chroma pack.)
Not saying that I wouldn't buy it but I cannot see many people buying an expensive skin for a champion that most people don't use in the first place. AND I wouldn't buy the Chroma packs for the other skins... simply lackluster imo.