Byleth: Tested Professor Red Sword Infantry

Byleth: Tested Professor - Peaceful Byleth: Tested Professor - Fighting Byleth: Tested Professor - Special Attack Byleth: Tested Professor - Injured

Child of the former captain of the Knights of Seiros, Jeralt. A stoic, capable professor at the Officers Academy. Appears in Fire Emblem: Three Houses.

Stat Benchmarks (Byleth: Tested Professor / Top)

HP 40/60 40
ATK 36/41 36
SPD 38/41 38
DEF 34/42 34
RES 20/41 20
BST 168/180 168


  • Creator Sword Accelerates Special trigger (cooldown count-1). During combat, neutralizes effects that guarantee foe's follow-up attacks, prevent unit's follow-up attacks, grant "Special cooldown charge +X" to foe, or inflict "Special cooldown charge -X" on unit. 5 stars
  • Ruptured Sky Boosts damage by 20% of foe's Atk. If in combat against a dragon foe or beast foe, boosts damage by 40% instead of 20%. 5 stars
  • Distant Counter Unit can counterattack regardless of foe's range. 5 stars
  • Chill Spd 3 At start of turn, inflicts Spd-7 on foe on the enemy team with the highest Spd through its next action. 5 stars
  • Odd Spd Wave 3 At start of odd-numbered turns, grants Spd+6 to unit and adjacent allies for 1 turn. (Bonus granted to unit even if no allies are adjacent.) 5 stars

Hero Data

Byleth Quotes

“I'm Byleth. I used to be a mercenary, but now I'm a professor. I will help your cause however I can.”

“Everyone here has a fighting spirit. In that respect, this place feels much like the Officers Academy.”

“When I was a mercenary, I rarely got too close to anyone. That all changed when I became a professor.”

“I can patrol the area if need be. I have experience from my mercenary days, and from watching over my students.”

“As a professor, I spend most of my time teaching others. But I believe I could learn something from you.”

“I sometimes feel I am grasping for a purpose in life. Perhaps someday I will know what it is.”

“I'm here to say hello in <Friend Name>'s stead.”

“Such power dwells within?”

“Together we can grow stronger.”

“I'm not setting a very good example.”

“A new path to tread.”

“How long has it been since I was summoned to this world to fight alongside you? The flow of time brought us together, and now we are bound inextricably. I am your ally, and you are mine. I have not forgotten the needs of my students. But I have no regrets about my decision to join your cause. The Sword of the Creator empowers me to sever my doubts—to carve a path through tangles of uncertainty. With this sword in hand, I will defeat our foes and lead us to victory.”

Level 1 Stats

5 17/18/19 11/12/13 7/8/9 7/8/9 2/3/4

Level 40 Stats

5 36/40/43 33/36/39 35/38/42 31/34/37 17/20/23