Siberys Dragonmark (Detection)

You possess a Siberys Dragonmark, the largest and most powerful expression of a dragonmark. This may have evolved from an existing Greater Dragonmark or, or you may have manifested it spontaneously. The Siberys Dragonmark of Detection grants the following benefits:

• Increase your Intelligence of Charisma score by 1, to a maximum of 20
• You gain the ability to sense and pinpoint hidden objects in your vicinity. As a action, you can open your awareness for the next minute to magically detect the presence of hidden creatures, objects, secret doors, or traps within 30 feet of you that are not behind total cover and aren't protected from divination magic. When you do, you can't use this feature again until you finish a short or long rest.
• When you reach 15th level, you can cast foresight once without expending a spell slot or using material components using your siberys mark, but when you cast it this way the duration is an hour and the range is self. You regain the ability to cast it this way when you finish a long rest. Intelligence is your spellcasting ability for this spell.