Blessing of Might

2nd-level Transmutation
Casting Time: 1 bonus action
Range: 30 feet
Components: VS
Duration: 1 minute

The target's pupils dilate, gaining a supernatural awareness of the vulnerable points of their targets. Whenever they deal damage with a weapon attack, they deal 1d6 additional damage of the weapon's type.
A creature can only have one Blessing spell on them at a time.
At Higher Levels. When you cast this spell at 3rd level or higher, you can target one additional creature for each slot level above 2nd.

Source: Homebrew