Warhammer Fantasy

You extend your hands and a beam of flame 5 feet wide and 60 feet long extends them. all creatures caught in the beam perform a dexterity saving throw. Suffering 10d6 fire damage upon a failed save, or half as much upon a success. In addition, those who are caught within the beam, or enter it, cannot advance towards you. This is a 5 turns concentration spell. You may shift the direction of the beam at the beginning of your next turn, but while maintaining it, you may not use any actions (action, bonus action, or reaction) or movement, You may drop your concentration at the beginning of your turn and have all the actions and movement available to you. When using a higher level spell slot. Damage increases by 2d6 fire damage for every slot level higher than 5.