Event Feats are challenges that can only be completed in Conquest. Some feats require specific buffs or debuffs to be applied, specific characters or items to be used, or even require you to follow a certain path as you complete your Galactic Conquest. 

Rewards will range from Keycards, to Data Disks, and Consumables, so the earlier you complete your Event Feats, the greater upper hand you’ll have for the rest of your battles.