Covert Caster

You are expert at keeping your spell casting hidden. You gain the following benefits:

• When you are hidden from a creature and miss it with a ranged spell attack, the creature must succeed at a Perception check with a DC equal to your proficiency bonus + 8 + your Dexterity modifier otherwise making the attack doesn't reveal your position.
• When you cast a spell, you can cast it without any somatic or verbal components a number of times equal to your Dexterity modifier (minimum of 1) before finishing a long rest.