Mythra bair is capable of leading into most of Mythra's aerial kit, except dair. It extends and starts combos, while also being capable of leading into itself, and is the best aerial for platform extensions due to this. It's not as good as fair for hitting someone offstage, but unlike fair this move has many more combos off it.
Hitbox Active
FAF
Autocancel
Landing Lag
Damage (base)
Damage (1v1)
Angle
KBG
BKB
Shieldstun
Shield Safety
Clean / Late
10-11 / 12
34
1-3, 26+
10
7.5 / 6.5
9 / 7.8
72
66
67
3
-7