Slot Board
Click a slot, pick a stat from its pool, set your rolled grade. Roll chances shown are official cabal.co.kr disclosed rates (별의 결정 conversion). Your build is saved in this browser — log in with Discord (top right) to sync it across devices.
Upgrade Advisor
Using the official roll rates: which filled slots roll below the slot's average and are worth changing — your chance and change cost to beat the current roll — and which to keep.