Laser Screwdriver is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

: Add one mana of any color. , : Tap target artifact. , : Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) , : Goad target creature. (Until your next turn, it attacks each combat if able and attacks a player other than you if able.)