Bruising

You imbue your fists with the power to project their speed and strength to creatures at a distance. While concentrating on this spell, you have proficiency with Unarmed Attacks, and your Unarmed Attacks have reach equal to the range of this spell. When making an Unarmed Attack using this reach:

• you can choose to use your spell casting modifier for the attack and damage rolls instead of your normal modifiers
• the damage die is 1d4 at a minimum
• the damage dealt is necrotic instead of what you would normally deal
• these attacks ignore half and three-quarters cover
• these attacks are non-lethal

This effect doesn't change your reach when determining Attacks of Opportunity.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, for each level of the spell slot above 2nd you can choose another willing creature within range to also gain this effect on their unarmed attacks. Other creatures can choose to use their spellcasting modifier for the attacks and damage rolls instead of their normal modifiers as above.