Have spent around $6k and it's clear the 50/50 mechanic is fraud. Genshin is odd because it's been made extremely clear the devs only want to exploit players both in and outside the game. It's a ground breaking mobile game that unfortunately SEVERELY hurts itself with parts of it's gacha system that exist ONLY to abuse customers. Very poor rates and expensive draws with a pity of 90 (~$180) that only has 50% chance of getting the banner unit. Lost the 50% 10 times in a row. Odds of that: 0.098%