Divine Tournament Grounds

{t}: add one mana of any color to your mana pool.
{b/g}{u/r}{w/b}{g/u}, {t}: target an opponent. You both have
a random creature you control fight the other. Each
player whose creature dealt lethal damage this way
may either search their library or cards owned from
outside the game for a card & add it to their hand.

Season 16 was a clash of good vs. evil. Both went to the Garden of the Gods for different reasons where they clashed in a tournament organized by their gods.