Pyra swings her sword above her. This move is very disjointed above her, but struggles to hit standing opponents. This stunts its otherwise great landing shield safety and combo potential. UAir's autocancel window is exceptional, starting as soon as 8 frames after the final hitbox. This allows her to SHFF AC UAir, as well as FH AC UAir onto platforms. Using FHAC UAir, you can actually ladder at specific percents. For example: landing UAir -> FHAC UAir onto platform -> IDJ UAir.
Due to the phenophenomenal autocancel window, this move is very good for setting up airdodge traps when an opponent is landing. One notable use of this is out of UThrow, where it won't true combo but can still be used to chase airdodges or cause an opponent to jump, which leaves them in juggle versus Aegis with no jump.
Hitbox Active
FAF
Autocancel
Landing Lag
Damage (base)
Damage (1v1)
Angle
KBG
BKB
Shieldstun
Shield Safety
13-17
58
25+
8
10
12
81
67
90
4
-4