Yu-Gi-Oh: 10 Most Powerful Unbanned Cards In The Game

Mystic Mine is a field spell that soft locks the game. If your opponent controls more monsters than you do, your opponent cannot activate monster effects or declare an attack.

The effect works both ways as if you control more monsters than your opponent you cannot activate effects or declare attacks but this diminishing effect never affects the player controlling Mystic Mine. If both players control the same amount of monsters Mystic Mine is destroyed.

Mystic Mine is currently at three in the TCG but players have been complaining about the card for the last year. The main argument is the game is extremely boring to play against and shuts down every effect monster in the game. Mystic Mine isn't that easy to destroy as most monsters have built-in destruction effects but if Mystic Mine is already on the field they cant be used.

Additionally, spell and trap removal is at an all-time low at the moment and Mystic Mine decks are usually backed up with trap cards that can negate anything, such as Solemn Judgment. The biggest argument against Mystic Mine is the player using it gets all the control, the common scenario is the opponent stops playing monsters until they draw their spell removal but this could take some time, all the while the player with Mystic Mine is building up their resources until the time they want to remove it and win the game. The card just stops the game in its tracks and gives a huge advantage to the duelist playing it, if everyone played it games would never finish!

The TCG has lived with Mystic Mine for just over a year now and everyone is surprised its lasted this long. Don't be surprised if the card is limited to one on the next Forbidden and Limited list.