The Great Stone of Challenge


 * "Welcome, heroes, to the Great Stone of Challenge. Your deck building prowess will be tested: You may only use spells with an even cost; you may only use minions with odd attack! Build a deck and fight for the Stone of Challenge!"

 is a Tavern Brawl. It made its debut on April 13, 2016.

Overview
This Tavern Brawl sees players doing battle with custom decks, with some special restrictions. Decks can only include spells with an even mana cost, and minions with odd Attack values. The Brawl's design mirrors the rules for deck construction in the original Challengestone tournament, to which the Brawl, its title and its artwork pay tribute.