The Cauldron of Smoldering Embers became a required material for the WEBCCG late in its lifespan. Containing 15 specific cards, the Cauldron randomly put one into play at the beginning of every turn, randomly replacing one card on the field. The replaced card was traditionally melted, however, in the interest of value depreciation prevention, this was rarely followed through on. The Cauldron field was banned from tournaments eventually, due to gaming laws in certain countries that prevented people from winning prizes in games requiring burning of printed materials.