so yea every month we will select a duelist of the month now, how they are select is simple u either shadow duel or arena duel.
for those who don't know, a shadow duel is a duel between people where duelist wage a number of points it should not be more than what any person contains
for example
duelist A has 110 point and duelist B has 20 points they can wager any points more than 20
and to learn about arena duels read this
https://armagedda.4umer.com/t8-earn-points