The Emperor Class was a unique Class for Edelgard in Fire Emblem: Three Houses, and, along with the Armored Lord Class, it makes a return in Fire Emblem: Three Hopes. Because it's a Master Class, it will take some time before players can unlock Emperor. Much like its Three Houses counterpart, the Emperor Class' main skills are Axes and Authority. Edelgard will also gain additional growth in Heavy Armor.
The Emperor Class shares a trait with the Cavalier Classes in Fire Emblem Warriors: Three Hopes. By charging into enemies, Edelgard can knock aside weak enemies. While the Emperor Class will end up being Edelgard's main Class, it's recommended to have her master other Classes to gain more Abilities and make her into a powerful unit. This will help combat the Emperor's weaknesses, thus making combat easier.
Fire Emblem Warriors: Three Hopes – Easter Eggs Only Die-Hard Fans Noticed
The Emperor's best stats are its Strength and Defense. Its poor Speed and Resistance mean that Edelgard should steer clear of enemies that excel in Magic, such as the Gremory and Dark Bishop Class. On the other hand, Edelgard's Strength and Defense allow her to go head-to-head against most enemies, thus making her ideal for seizing Strongholds and attacking commanders.
Despite the low Magic growth for Emperor, Edelgard can benefit from mastering the Gremory Class thanks to her Budding Talent in Reason. The Budding Talent mechanic doesn't quite exist in Three Hopes. Instead, units who master a certain Class will gain an Innate Ability. Not every Innate Ability is worth unlocking, but Edelgard's Nullify Magic is ideal for her Emperor Class.
By the start of Chapter 4, Edelgard will automatically be reclassed to Armored Lord and will have a new weapon
Read more on gamerant.com