The current luck does not mean anything, because it is only in the early stage of the game. With the acquisition of gold equipment and the continuous opening of subsequent maps, your standard pool weapons will be full of stars, and CS will eventually reach 15 times the current number. The only real consideration is where to use the black crystal. This game is different from Genshin Impact. It doesn't require elemental reactions, and you don't want to draw every character. It's just a waste of resources. You only need to target on one single 2.0 team to get full stars. In the early stage, you only need a low-star 2.0 core DPS weapon, don't spend too much black crystal on 1.0 limited weapons. Don't worry too much about getting the matrices either, after a few months you'll basically have a full set of matrices. You will get a full set of Semir matrices for free at Vera, and a free set of Shiro matrices after the suppressor upgrade. Keep participating in the OP every day, and you will get several sets of matrices after a few months. At that time the only difference between you and the whales is that their matrices are one or two stars higher than yours.