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What is the name of the soundtrack in My Hero Academia season 3, episode 14 beginning at 4:10?
just to make sure was this when the class were being told about special moves?
The next music after that point (beginning 4:25) is 'Kibasen'
Hopefully this is the piece you were looking for.
It's Kibasen, the 13th track from disc 1 of My Hero Academia 2nd Original Soundtrack.
Required, but never shown