>>1861486
Their peak DPS is what you'd expect of 4.2 units but they have long build up phases, specially Ciel.
And you have to do the sweaty rotations manually for the element you are playing or the Chain buff won't activate so no facerolling with Ling while the AI does the job.
With Ciel you have to manage her status durations and blood point economy while also playing at, ideally, 1hp.
With Alisa it's just managing timings and counting slashes.