Eye of the necessity

Once per long rest you may use both your action and bonus action in order to understand a combat encounter difficulty level according to how many creatures you can see.

Your DM will describe you the encounter as easy, medium, hard or deadly.

Since your focus on reading the battlefield is so intense, until the start of your next turn any attacks made on you have advantage.

If you get hit by an attack or spell effect while focusing on the battlefield and before the start of your next turn you break your focus and cannot use this feat again until long rest. Your focus also will break if you use your reaction to either cast a spell or attack