Choose a manufactured metal object you can see within range, such as a metal weapon, a suit of heavy or medium metal armour, or a construct creature made of metal. You cause the object to glow red-hot. Any creature in physical contact with the effect 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 is holding or wearing the object it can chose to drop the object if it can to avoid the effect of this spell. If the creature doesn't drop the object, it takes the damage from the spell, and must succeed on a Constitution saving throw. On a failed saving throw, the creature 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.