Open all the cubes in the row where the CD is reduced, fill them with cubes, and give priority to reducing the CD. If the CD reduction is not enough, you can put other cubes. As long as the line is filled, the CD reduction will take effect. Row by row, the most needed row is opened first, and it is more cost-effective to add bonus to each row. Open what is most needed until there is coal in the future. Character priority armor and cd column are unlocked, weapons will crit and explode, and pet armor will be attacked. Even if there are many vertical squares, they will rank first horizontally, unless there is not enough sugar or the shape is limited.