Truly the Wallet's Gravestone and the Staff of Homeless. Mihoyo really needs to revamp the weapon gacha, but considering how much money it makes them I doubt it will ever happen.
The gacha has 2 'main' prizes, and even with already bad rates (0.5% for 5*), you can get trolled by the 25% chance to get an off-banner 5*. That means, if you're not lucky, you're gonna spend at least 75-90 rolls to get 1 5*, which is 33.5% the one you want. Several hundred people reported that the Wolf(allet)'s Gravestone (the greatsword) drop rate outweighs the Staff of Homa(less), the most extreme example being this
Rate-up bannerFirst, you gently get a five star...Epitome InvocationThis gacha is like your Genshin. You always miss the opportunities that are upon you.Doing a lot of pulls, yet never getting Amos' and Ganyu. Holy shit! You rolled a Gravestone and ruined everything! Just like everything you do. Wolf's GravestoneWeapon Event WishStaff of HomaAnd nobody loves you.