If youd like to take a look at my replays from the tournament, youll see that a lot of games were decided by one (or more) of these power cards: Everything in your deck screams synergy with these blowout cards that end games on the spot, sometimes you even OTK your opponent from full life
These include: Charizard Pikachu Umbreon Mew Rayquaza Gengar Lugia Eeveelutions These characters often drive demand across multiple sets and generations
A large number of serialized Multiverse Legends held onto their value as well, featuring dozens of cards priced at over $100
UR Ultra Rare Spright Starter X SPELL Quick-Play Special Summon 1 "Spright" monster from your Deck, but lose LP equal to its original ATK, also for the rest of this turn after this card resolves, you cannot Special Summon, except Level/Rank/Link 2 monsters
This makes the benefit of these abilities always being available in your Command Zone a bit of a waste on their own, as a payoff is worthless if you cant make any tokens to take advantage of it