Even with Hoyoverse's FOMO tatics with Eula, I still think Eula klee double banner can potentially end up as the worst banner in terms of sales.

There is just too many things that are going against Eula and it's banner placement.

1. With the success of Honkai star rail, there is a significant dip in the sales for almost all of the banners and it might continue till 4.0 Fontaine release. With how dead the recent patches are in genshin, I can see a lot of people taking break and coming back to check on Fontaine release easily skipping out the 3.8 banners.

2. physical has fallen off significantly. Physical has no synergy, no sub dps, no support artifact and all of the physical supports characters are just trash. Only decent one is a C6 mika that id just a sidegrade to a C0 bennett.

3. People who wants Eula most likely have enough primogems to get her. People who are saving for her constellation might already have enough primogrms to C6 Eula. It is just sad for how long they had to wait to the point they can even C6 her now.

4. Eula klee banner is sandwitched between Alhaitham Kazuha banner and future Fontaine release making it one of the most easily skippable banner in genshin.

5. With the recent trend of harder abyss, Meta characters have been getting a lot more love recently. Being Waifu/Husbando is no longer enough to guarantee sales anymore.

6. It is truely sad the state at which Eula is right now. Even with the least ownership rate, Eula managed to have the least usage rate among the limited 5 star. Her lack of relevance in any of the story/event and getting relegated to being side chick to Amber in most of her appearance doesn't help. She has a really good lore and backstory but Hoyoverse just doesn't know or care to do even bare minimum for Eula. Dragonspine event where she had the biggest impact was all about Albedo.

Eula is just a tragic of a character. Not only getting ignored by the people of monsdalt but also hoyoverse themselves. Huge potential for her charactet but simply wasted so far.