Maybe your playing partner just used one against you and youre wondering if the play is legitimate - after all, youve never even seen one of these before
You'll either be tempted by the ring and get a +1/+1 counter onto your ring-bearer
(They each put the top card of their library into their graveyard.) : Each player mills a card
As a tabletop novice, I also enjoyed the more social aspect of playing face-to-face with someone - I love Master Duel as much as the next duelist, but theres something more personal about playing against someone across the table, especially when youre learning the intricacies of the extra deck together
For your efforts you are rewarded with Traverse the Ulvenwald, which helps to alleviate this decks natural mana problems from running plenty of double-colored cards in both its colors, and also gives you access to a nice toolbox of creatures
65 card sleeves featuring Mega Rayquaza