Abjuration Savant
Beginning when you select this school at 2nd level, the wealth and time you must spend to copy a abjuration spell into your spellbook is halved.
Arcane Ward
Starting at 2nd level, you can weave magic around yourself for protection. When you cast an abjuration spell of 1st level or higher, you can simultaneously use a strand of the spell's magic to create a magical ward on yourself that lasts until you finish a long rest. The ward has hit points equal to twice your wizard level + your Intelligence modifier. Whenever you take damage, the ward takes the damage instead. If this damage reduces the ward to 0 hit points, you take any remaining damage.
While the ward has 0 hit points, it can't absorb damage, but its magic remains. Whenever you cast an abjuration spell of 1st level or higher, the ward regains a number of hit points equal to twice the level of the spell.
Once you create the ward, you can't create it again until you finish a long rest.
Projected Ward
Starting at 6th level, when a creature that you can see within 10 meters of you takes damage, you can use your reaction to cause your Arcane Ward to absorb that damage. If this damage reduces the ward to 0 hit points, the warded creature takes any remaining damage.
Magical Disruption
Beginning at 10th level, when you finish a long rest, choose one spell or magical effect (such as a dragon's breath weapon or Hold Person). The first time you and up to 5 allies that are within 4 meters of you when you take the rest are affected by those abilities, they are immune to its effects.
Spell Resistance
Starting at 14th level, you have advantage on saving throws against spells.
Furthermore, you have resistance against the damage of spells.