Unwavering sentinel

You will divine energy into your shield in order to protect an ally that meets the spell’s trigger.

Choose a creature within five feet of yourself. In the case of an attack roll, you redirect the attack roll onto yourself, potentially causing it to miss.
In the case of a saving throw, the target takes half of the damage, rounded down. You also make the saving throw, taking the same amount of damage on a failure.

Both you and the target suffer any extra conditions that the saving throw entails, halving the duration of the effects of applicable.