Burnt offering

By constructing a pyre and burning animal´s corpse, you court the favour of the gods. For the duration, cou can add your Wisdom modifier instead of your Dexterity modifier, to your Armor Class. 

AT HIGHER LEVEL: If you cast this spell using a spell slot of 3rd level or higher, you can also reroll one saving throw you make during the duration. You can choose to reroll the saving throw after you roll the die, but must decide before the outcome is determined and must use the new roll.