Three wins for the victory.  Taichi's declaration provides encouragement to the remaining players.  The Mizusawa karuta club uses all of their experience and practice to fight to the end.
It would be most gratifying 
if Mizusawa was able
Debería ser lo más gratificante 
que Mizusawa pudiera
Sería muy gratificante que Mizusawa
pudiera asegurarse
Seria muito gratificante
 se a Mizusawa conseguisse