Inert Aura (5e Feat)
From D&D Wiki
Prerequisites: The ability to cast at least one spell
Your magical power forms a subtle aura that grants you a limited resistance against magic and disrupts spellcasting attempts near you. You gain the following benefits:
- As long as you are conscious, you gain a +1 bonus to saving throws against the effect of spells, and all damage you take from spells is reduced by 2.
- When a creature you can see within 5 feet of you casts a spell, you can use your reaction to emanate your aura to interrupt its spellcasting process. Make an ability check using your spellcasting ability. The DC equals 10 plus the spell's level. On a success, the creature's spell fails and has no effect. Once you use this feature, you must finish a long rest before you can use it again.