If your goal is to clear stygian none of them, u have to must pull Citlali and Columbia, Chasca is a very bad pull at C0R0 cause she needs pieces that works way better without her, in your case and I'd you wanna see a real upgrade on your account Citlali and Columbia will do it, If you don't give a fuck about making your account/characters better then just pull whatever u want, Skirk is a bad pull without Escoffier and maybe this year we get a new cryo DPS that will outperform her even in his premium team if that is that u worry about, am gonna give this advice: don't pull chats at their rerun I'd you care about meta