Its very rng based. Imagine spending money on the game and still not getting a confirmed premium item? Unlike other games that still gives you at least 1 premium item per roll. I've spent so much on the game, save up crystals for the year to get CTPs and Premium cards. And when i roll in the dimension chests (cause thats where to get them), i got nothing. So... not just i dont get any uniforms, i wasted time, effort and money to get nothing. Nada... no premium card. No ctp, and uni. Burnt!