I agree with @GizmoTheWizard & @Jurassic_Fury, this probably isn’t the best idea.
While I guess it can be beneficial for lower level players, its most likely still not a good idea even if its just once a month. Having legendaries be the only thing that would spawn would be catastrophic for the already pretty chaotic arena. Besides, aren’t the events containing them enough already? we already get chances to dart legendaries and uniques quite often during special events, and we already get coin chases every sunday. And overall this would just kill the effort needed to make good dinosaurs, which is a part of the games blood
Its sadly already rather easy to get apex’s rn, this would just make it worse. So I just say no to the idea since we basically already have all that in game, darting legendaries and uniques like once a month or something and we get coin chase 1 day a week.