Foresight

9th-level Divination
Casting Time: 1 minute
Range: Touch
Components: VSM (a hummingbird feather)
Duration: 8 hours

You touch a willing creature and bestow a limited ability to see into the immediate future. For the duration, the target can't be surprised and has advantage on attack rolls, ability checks, and saving throws. Additionally, other creatures have disadvantage on attack rolls against the target for the duration.

At Higher Levels. When you cast this spell using a spell slot of 10th level or higher, you can target one additional creature for each slot level above 9th.

Source: PHB 244, SRD

Changelog

Removed note about the spell ending immediately if you cast it again before its duration ends.
Added upcasting option.