It's the packaging itself that's valuable here, not the cards inside, so don't go cracking one of these black triangle packs open if you happen to find one sitting in the back of a drawer (you lucky devil)
: Can be activated during your or your opponent's turn by targeting 1 Level 7 or higher Synchro Monster on the field, excluding "Crimson Dragon"
And although I wont get into an argument about the difference in value between two versions of some non-inspiring trainer cards (No Rarity Base Set version is the OG and much rarer in good condition /end of argument), theres one where I think the difference really matters No Rarity Base Set Pokmon Traders PSA 10 POP report is all messed up 1200756 99 KB Screenshot from July 2021 Take a look at the Pop report for No Rarity Symbol versions of all nine Rare Trainers from Base Set
Cards like Overlord of the Hauntwoods and Aftermath Analyst should help you get to that prerequisite in no time
Duelist Kingdom Ultra Rare 4
Card Name Frodo, Adventurous Hobbit Mana Cost Type Legendary Creature Halfling Scout Rarity Mythic Rare rules Text Partner with Sam, Loyal AttendantVigilanceWhenever Frodo attacks, if you gained 3 or more life this turn, the Ring tempts you