Divine Roar

You call on Divine Power and it manifests above you in the shape of a majestic lion. 

The lion lets out a roar that terrifies and silences your enemies.  All enemies in a 60' radius of you must make a Charisma saving throw.  Those that fail take 2d8+ your Charisma modifier Thunder damage.  They are also Silenced, unable to speak or cast spells with a verbal component.  This effect lasts until the end of your next turn.

Those that succeed take half damage but suffer no other effects. 

At higher levels.  For every additional spell level, the damage increases by 1d8.