We’ve talked about how it’s important to hold priority when casting this card and using Lion’s Eye Diamond in response, but I can’t stress it enough!
It’s also crucial to remember that you can cast it for a secondary copy of something in your hand. I’ve watched other storm pilots completely blank on this in the middle of a game with tunnel vision. When I’m revealing a card to Infernal Tutor it’s usually some sort of mana or protection spells.
Sometimes, it’s just to shuffle my deck after a Brainstorm or a Ponder.