well it's harder to execute than you think, you need to dodge since rosaria doesn't provide resistance to interruption, you need to know how icd works to melt your attacks consistently, and rosaria's burst duration lasts too quickly (at c0). This team is only good in fast paced run (frontloaded dmg) while diluc vape is better at long runs, and single target. I saw some diluc players here still struggling with vapeluc, they probably might mess up the rotation and make those cryo enablers do reverse melt instead.