What does Laertes do to make sure that he gets the unblunted sword in the fencing match?

In Shakespeare's "Hamlet," Laertes ensures he has the unblunted sWord by conspiring with King Claudius. They plan to poison the tip of Laertes' sWord, making it lethal during the Fencing match against Hamlet. This scheme is part of a broader plot to kill Hamlet, as Claudius seeks revenge for the threat Hamlet poses to his throne. The unblunted sWord symbolizes the treachery and deception at play in the royal court.