mamba
Legend
Taking the Magic action to cast it is obviously what you do, even if the spell does not say so explicitly, that would be redundant. Also "When you take the Magic action, you cast a spell that has a casting time of an action or use a feature or magic item that requires a Magic action to be activated."This is not consistent with the wording in the 5.5E PHB. Spells with a casting time of an action don't actually say in the spell description that they require a "Magic Action" to cast, they just say "Casting Time: Action".