Battlefield Omniscience

For the duration, a 150-foot-radius sphere centered on you becomes your field of supernatural awareness, granting you the following benefits.

Blindsight of Battle. You gain Blindsight with a range of 15 feet.

Fate Tracking. At the start of each of your turns, you can track a number of creatures within the sphere equal to the level of the spell slot expended to cast this spell + your Intelligence modifier (minimum of one creature)without using any action. The tracked creatures must be on the same plane of existence as you. While a creature is tracked, you know its exact location even if it is behind Total Cover. This awareness doesn't allow you to ignore the effects of Total Cover for attacks, spells, or other effects. A creature protected by Nondetection or a similar magical effect can't be tracked by this spell. A tracked creature ceases to be tracked immediately if it leaves the sphere.

Insightful Lock. At the start of each of your turns, you can designate a number of tracked creatures up to your Intelligence modifier (minimum of one creature) as locked targets without using any action. A creature can be locked only if it is currently tracked and within the range of your Blindsight. You have Advantage on the first attack roll you make against each locked target on each of your turns. A locked target immediately ceases to be locked if it leaves the range of your Blindsight, though it remains tracked as long as it remains within the sphere. During each locked target's turn, it can use a bonus action to make either an Intelligence check or a Dexterity check (its choice) against your spell save DC. On a success, the creature immediately ends the lock placed on it by this spell, returns to being tracked, and can't be locked again until the start of its next turn.

Shared Vision. If one or more creatures are linked to you through Rary's Telepathic Bond, Telepathy, or another effect that allows two-way telepathic communication, each such creature has Advantage on the first attack roll it makes against a locked target during its turn, without requiring an action.
 

Using a Higher-Level Spell Slot. The sphere's radius increases by 30 feet and the range of your Blindsight increases by 15 feet for each spell slot level above 6.