Lucky Charm

From the Super Mario Wiki

The Lucky Charm is a special item only found in Mario Party 3. It could not be bought in an item shop or won in an item mini-game, only by buying an Item Bag at an item shop or meeting Toad on an Item Space.

When used, Game Guy appears and forces the target to risk all of their coins on a game of chance. If a player owns a Lucky Charm, he or she could select the player which Game Guy will manage, or even choosing oneself.

Items from Mario Party 3
Items bought from Toad	Boo Repellent • Cellular Shopper • Dueling Glove • Golden Mushroom • Item Bag • Magic Lamp • Mushroom • Skeleton Key • Warp Block
Items bought from Baby Bowser	Boo Bell • Bowser Phone • Bowser Suit • Item Bag • Lucky Lamp • Plunder Chest • Poison Mushroom • Reverse Mushroom • Skeleton Key
Rare Items	Barter Box • Koopa Card • Lucky Charm • Wacky Watch