energy sphere shield

conjure a energy shield that protects you or whoever or whatever you conjure it around, it causes  objects that try to pass through to glow red-hot and melt as the deflect of the energy field. Any creature in physical contact with the object takes 2d8 fire damage when you cast the spell. Until the spell ends, you can use a bonus action on each of your subsequent turns to cause this damage again.

 if a creature try's to go through the creature must succeed on a Constitution saving throw  , it has disadvantage on attack rolls and ability checks until the start of your next turn.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.