This mechanic has any player with Rad counters on them mill that many cards from their deck, losing one life for each nonland card milled this way, and then they lose one rad counter

Reward: Pack Hourglasses x12, Wonder Hourglasses x36, Shop Tickets x10 Secluded Springs secret missions Soaring Hoppip How to beat: Collect the regular art variants of Hoppip, Skiploom and Jumpluff ex Reward: Pack Hourglasses x12, Wonder Hourglasses x36, Shop Tickets x10 Legends Racing Across the Land How to beat: Collect the Two-Star full art variants of Entei ex, Raikou ex and Suicune ex Reward: Pack Hourglasses x12, Wonder Hourglasses x36, Shop Tickets x10 Secluded Springs Museum 1 How to beat: Collect the One-Star full art variants of Milotic, Stunfisk, Yamper, Latios, Phanpy and Azurill Reward: Pack Hourglasses x12, Wonder Hourglasses x36, Shop Tickets x10 Secluded Springs Museum 2 How to beat: Collect the Two-Star full art variants of Jumpluff ex, Entei ex, Raikou ex and Poliwrath ex Reward: Pack Hourglasses x12, Wonder Hourglasses x36, Shop Tickets x10 Pokemon That Can Use Attacks Immediately 2 How to beat: Collect the regular Mantyke, Igglybuff, Azurill, the One-Star Full Artwork Azurill, and the Crown Rarity Golden Mantyke

With the advent of "Fusion Armament", "Blue-Eyes Ultimate Dragon" has greatly increased in value as a card that can be used to Special Summon from the EX Deck, but with the appearance of the Normal Monster version that can be used in official duels of "Black Luster Soldier", it has become even more valuable
You found a $500+ card
Ill Leave this post with the Second National Conference/Third National Conference
Next trivia question: When the Duelists' Convocation (the DC in DCI and the original name of the governing body for tournament play) published its first set of tournament rules, what was the mulligan rule