As time passes, Trailblazers are about to welcome a brand-new version! Before diving into the new version, I believe everyone must be curious about which characters haven't been featured in the warp pool for a very long time. Today, let's take a look at these characters and see if your favorite is among them!
Top 10: Aventurine
Rerun Interval: 418 days
Last Warp Version: 2.6

Now that everyone has obtained Dan Heng • Permansor Terrae, Aventurine is not used as much. Dan Heng • Permansor Terrae can increase the Main DPS's ATK, offering stronger supportive capabilities. However, Aventurine generates shields by being hit, so his ability to protect the team might be slightly better.
Top 9: Rappa
Rerun Interval: 438 days
Last Warp Version: 2.6, first half

A mysterious ninja-rap girl who has never had a rerun. Rappa's original weakness was her inability to apply Imaginary Weakness, but now The Dahlia can help apply weaknesses, which is effectively a buff for Rappa. It's just a shame she didn't get a rerun of this version.
Top 8: Imbibitor Lunae
Rerun Interval: 438 days
Last Warp Version: 2.6, first half

A veteran DPS who consumes multiple Skill Points to deal high damage. The upcoming Version 4.0 is expected to focus on a Skill Point system, which could potentially benefit Imbibitor Lunae and lead to his rerun. However, for Imbibitor Lunae to truly return to the top tier, he would still need direct buffs.
Top 7: Topaz & Numby
Rerun Interval: 460 days
Last Warp Version: 2.5, second half

A Sub-DPS for Follow-up teams, but her mechanics might be less effective than Moze's. Although Topaz & Numby haven't had a rerun, they were added to the Stellar Convergence store in Version 3.7. Players who like Topaz & Numby can exchange for them there; Numby can also be used to find treasure chests in the open world.
Top 6: Black Swan
Rerun Interval: 480 days
Last Warp Version: 2.5, first half

The mysterious veiled lady. In the upcoming Version 4.0, Black Swan is confirmed to receive buffs and is likely to have a rerun. Reigniting the glory of DoT teams is a responsibility Black Swan is duty-bound to fulfill it!
Top 5: Argenti
Rerun Interval: 544 days
Last Warp Version: 2.3, second half

Once the king of Pure Fiction, easily scoring 40,000 points. Now, with the increased health of minor enemies, Argenti's numerical values can't keep up. If his Ultimate cannot wipe out the minor enemies in one go, he becomes quite difficult to use.
Top 4: Ruan Mei
Rerun Interval: 564 days
Last Warp Version: 2.3, first half

The most enduringly popular Harmony character in Star Rail, hot since her debut in Version 1.6 and still popular now. Ruan Mei has been added to the Stellar Convergence store. Even now, her Eidolon 1 is still the most recommended one to exchange for. Since Topaz & Numby were added to the store in Version 3.7, the next time the store adds a new character is probably still quite far away.
Top 3: Fu Xuan
Rerun Interval: 586 days
Last Warp Version: 2.2, second half

Although Fu Xuan hasn't had a rerun for a long time, she has been added to the alternative warp pool. It's estimated that many players already have her Eidolons in their inventory. Fu Xuan's team protection capability and supportive utility are not considered strong now, and she is rarely used.
Top 2: Luocha
Rerun Interval: 648 days
Last Warp Version: 2.1, first half

Also a character who has entered the Stellar Convergence store. A pure "healer dad" with ample healing output. He could support Castorice when she first debuted, but after Hyacine was released, Luocha fell out of the meta.
Top 1: Seele
Rerun Interval: 803 days
Last Warp Version: 1.4, second half

The first limited 5-star character in Star Rail, now also added to the alternative warp pool. While it's possible to obtain her there, it's better not to rely on that. Seele's kit is exceptional, but her numerical values are too low in the current version. We'll have to wait for potential buffs.
The top 5 are all older characters. Except for Argenti, they have been added to the alternative warp pool or the store, allowing players to acquire them. This also allows the rerun slots to be reserved for newer characters that better fit the current version, which is a good approach.
So, which of these characters do you most want to see rerun, and which one do you most want to pull for? Feel free to share your thoughts in the comments! ~