Below is a rough estimate for the amount of DPS required for 3* on F12-3 for different versions of Abyss. Note that you should not use the raw numbers. These should only be used to compare relative strengths between Abyss versions.
Low DPS refers to the requirement if you have optimal grouping/rotations, where you are hitting all enemies in a wave at the same time at peak efficiency.
High DPS refers to the requirement if you have sub-optimal grouping/rotations, where you are hitting enemies individually.
