Aspects of the crucible: "Tail"

When you cast this spell you grew a tail that allows you to attack a foe within the range of the attack, (5ft long x 15 feet wide). 

To hit any foe in the AOE you have to do a spell attack roll, on a successful throw the foe receives 14 (4d6) bludgeoning damage, if you hit the first attack you can use your bonus action to roll for another tail attack that does 21 (6d6) bludgeoning damage, the foe has to succes on a strenght saving throw to not be pushed 10ft away from the target.