Abjuration

Burnt Offering
1st-level abjuration (ritual) Casting Time: 10 minutes Range: Self Components: V, S, M (a pyre and slain animal) Duration: 24 hours By constructing a pyre and burning an animal’s corpse, you court the favor of the gods. For the duration, you can add your Wisdom modifier, instead of your Dexterity modifier, to your Armor Class. At Higher Levels. 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.

Transient Bulwark
1st-level abjuration (ritual) Casting Time: 1 action Range: Self Components: V, S, M (a pearl worth 10 gp, which the spell consumes) Duration: 8 hours The next attack made against you within the duration has a -10 penalty to hit.

Curse Ward
2nd-level abjuration Casting Time: 1 action Range: Touch Components: V, S Duration: 1 hour You reach out your hand and touch a willing creature within your reach, raising a smoke-like barrier around it. For the duration, the target has resistance to necrotic damage and can’t be cursed, possessed, or targeted by a hex. Also, its maximum hit points can’t be lowered. If the target is already affected by one of these effects, the effect is suspended until the spell ends.

Protection From Ballistics
2nd-level abjuration (renaissance) Casting Time: 1 action Range: Touch Components: V, S Duration: Concentration, up to 1 minute 

 A shimmering shield of energy surrounds one willing creature you touch. For the duration, ranged attacks made by firearms have disadvantage against the target, and the target has resistance to any damage dealt by firearms.

Force buckler
Abjuration cantrip Casting Time: 1 bonus action Range: Self Components: V, S, M (a specially-prepared gauntlet worth at least 5 gp) Duration: 1 round You summon a translucent, yet visible, field of force which springs forth from the prepared gauntlet. Until the beginning of your next turn, this shield grants you a +2 bonus to your Armor Class, as if you were wielding a shield. This spell ends early if you are hit by an attack.