Boon of Apex Conjuration (5e Epic Boon)
From D&D Wiki
Boon of Apex Conjuration
You have mastered the magical school of abjuration.
- Choose a first level conjuration spell you can cast. You can now cast it at will.
- When you summon creatures with a conjuration spell, they all have resistances to one damage type of your choice.
- If you have any teleportation spells that are cast as an action, you can cast them as a bonus action, and the range of teleportation is doubled.