20-Coin Hex

From the Super Mario Wiki

The 20-Coin Hex is a type of Hex in Mario Party DS. The player who possesses it can choose to place it on any Space within a certain distance (except for "special" spaces.). Then, if an opponent lands on it, 20 coins will be taken from them. If the player who threw it lands on it, the hex will be cancelled out, but they will receive 5 coins.

Hexes from Mario Party DS 10-Coin Hex 20-Coin Hex 1-Star Hex 2-Star Hex Space Swap Hex Coin Swap Hex Star Block Coin Block