Ryazan
Smash Ace
This may have been mentioned already, and I'm sure many of you already use this. But I didn't find it in the Pit Compendium's threads and I think I should bring it to the attention of newer players. You may have heard about a tech called the Angelic Step. If you perform the controller input for that minus the startup move (tilt back and tap forward) and immediately follow up with a SHFF (short-hop, press A, then tap down), you will perform an instant SHFFd Bair in the direction you were facing before. This is useful because Pit's Bair is his most powerful aerial, and this allows you to perform it without wasting time turning around or getting the opponent behind you. This is especially useful because Bair has short range and must be used close to the opponent to be effective. This allows you to use it seamlessly without risking interference from the opponent. It also makes Bair a more practical finisher, which is a godsend since Pit has few of those.