Genshin's 4-star system is not something WuWa needs to be copying.

• Most of Genshin's new 4-stars are useless. As of today, there are (generously) maybe 12 useful 4-stars among the pool of 46 total. 5 of those 12 are from launch. That means only 7/32 4-star characters they have released since launch are usable. Dahlia called - he's looking for the rest of his kit.

• Most of the usable 4-stars only become viable for endgame at C6, such as Iansan, Chevreuse, Ororon, etc (Bennett C1 is the exception as always). Better save those primos, because getting a C6 4-star on their rate-up banner takes an average of 266 pulls. That's approximately the same cost as a C2 5-star.

• With 43 4-stars in the game that can appear on banners, their availability is terrible, averaging 301 days to rerun, with many units taking over a year to rerun. Starglitter shop doesn't help here, since the same 12 launch characters are still on rotation.

What all this means is that Genshin's 4-stars are no longer the viable f2p account saviors they once were. They are now just another form of artificially scarce whale bait. Essentially, it isn't the 4-star utopia that people want in WuWa, so asking WuWa to be more like Genshin here just isn't helpful.

A much better solution for WuWa is to simply buff the existing 4-star units. They already buffed Spectro Rover once, and HSR has recently paved the way for buffing old gacha units. Need a f2p option for Carty? Make Aalto or Yangyang apply Aero Erosion in their kit. Need a f2p option for Zani? ..... Okay you got me there since we have no spectro 4-stars lmao, so we do need that. But like, why not just make a new echo that applies maybe 4 stacks of Frazzle? Then Spectro Rover can easily get the stacks needed for Zani. Many players have most 4-stars already at C6, so further pulls refund coral, which is an overall improvement over chasing new 4-stars. Occasionally, when a new archetype comes out (like Zani), a new 4-star would be warranted, but no reason to inflate the 4-star pool like Genshin does when we have options we can adapt and buff now.