These are the Lunar New Year outfits closely linked with the 12 zodiac signs in League of Legends history.
Cassiopeia Year of the Tiger
Cassiopeia Year of the Tiger is a Lunar New Year skin named after the first 12 zodiac signs to appear in League of Legends and is also considered one of the most impressive Lunar New Year outfits. This outfit is designed with two main colors: green and red. When Cassiopeia wears this outfit, she looks very charming and gentle compared to usual days.
Once one of the hottest meta champions, Cassiopeia is currently out of meta after several consecutive nerfs to her strength. Perhaps, in the future, Cassiopeia can only return when Riot decides to buff her significantly, or even, if necessary, there may have to be a new rework that could bring this half-human, half-snake champion back to Summoner's Rift.

Azir Year of the Rooster
The Azir Year of the Rooster skin is the second Lunar New Year skin closely associated with the names of the 12 zodiac signs in League of Legends history. Debuted during the 2017 Lunar New Year, Azir Year of the Rooster is highly regarded for its outfit design and splash art exuding the majesty of an emperor. Additionally, Azir Year of the Rooster is also linked to one of the most turbulent seasons of Teamfight Tactics in Riot's game mode history.
Unlike Cassiopeia or any other name on this list, Azir is not necessarily out of meta. This champion is not really an overpowering name or belongs to a specific meta. However, Azir excels in the laning phase with good poke ability and a 'dominant' set of engaging skills, requiring very high player skill. Up to the present time, Azir is still commonly used when teams want to display continuous engaging gameplay. However, compared to its 'golden age,' the king of Shurima has indeed been somewhat neglected.

Nasus and Warwick Year of the Dog
Warwick Year of the Dog is one of the most beautifully evaluated skins in the Lunar New Year skin series of League of Legends in general and Warwick skins in particular. No longer the image of the Beast from the Kennels, Warwick Year of the Dog is like a god from the heavens with dazzling radiance. Additionally, Warwick Year of the Dog is considered 'pay-to-win' as the effects of this champion are easier to see and help players control more easily.

Released alongside Warwick in the Year of the Dog Lunar New Year skin group is Nasus Year of the Dog. If Warwick's skin is as magnificent as it gets, Nasus shines even brighter and appears more godly. The golden appearance combined with meticulously crafted skill effects are the highlights of the Nasus Year of the Dog skin. However, both of these gods have been out of meta until now. In fact, Nasus has become the subject of mockery by the famous male streamer Thầy Giáo Ba with the legendary number 0175.

Sejuani Year of the Pig
The last and also the most recent champion to receive a Lunar New Year skin associated with the 12 zodiac signs is Sejuani Year of the Pig. Similar to the names mentioned above, Sejuani is also bidding farewell to Summoner's Rift and the last time people saw this champion was at the 2021 Worlds play-in stage. However, since entering the Main Event, Sejuani has disappeared without a trace.

And this is also the last skin released for the Lunar New Year that is associated with the images of the 12 zodiac signs. Until now, another Lunar New Year is approaching, and it seems that there will still be no additional zodiac signs or champions chosen to 'join' these special occasion skins by Riot.
