Divine Protection

When you're about to recieve damage that will knock you  Unconscious or Kill, you can use your reaction to pray for divine favor. Until the end of your next turn, you have immunity against all kinds of damage and harmfull conditions or effects. It also ends all harmfull conditions and effects that were on you prior to it. While this effect is active all damage that you and your spells do is halved. 

This spell cannot be prevented with Counterspell.

When the effect of the Divine Protection ends you get 1 level of Exhaustion but not more than 5th. After it's used you cannot cast this spell for 1d10 days.