It’s like some hilarious half-baked plan at my DnD table.

Mage: I know, I’ll use the magic item I found to attack the Lich!
DM: The one that you found in the Lich’s crypt?
Mage: Yes.
DM: The one with the backstory about how the Lich made it himself?
Mage: Uh-huh.
DM: The one where he spent three centuries researching and crafting it to dominate the world of the living? The one that has the inscription: “For the master’s tool will never dismantle the master’s house.”
Mage: … oh.
DM: Yeah…
Mage: I’m in danger.