yugioh witchcrafter cards MP20-EN224 Madame Verre | 1st Edition | Super Rare Card Fusion/Effect Monster Rarity Witchcrafter Schmietta INCH-EN016 Prices |

Currently, this is their primary function in the games early meta

They are associated with a specific color of mana, and you "tap" (turn sideways) them to add a mana of that color to your mana pool

The game is primarily designed for two players , but you can enjoy it with up to six (theoretically, the game has no maximum number of players

Over the years, there have been other Professor cards that have served the same effect, including Professor Juniper and Professor Sycamore and the more recent Professor's Research Support card

However, it may take some time until you get the right cards for the necessary decks