yugioh card locket PENDANT Pendulum Pendant - 25th Anniversary

This means it's not possible to cheat creatures into play out of nowhere (which madness can do), but it also means you're granted more flexibility, because you can cast a spell for its mayhem cost at any point during the turn in which it was discarded (rather than having to choose immediately as per madness rules)

Its not uncommon to have games where it draws you 5+ cards before someone drops a removal on it

The ultimate flex for any player would be to create a deck where all the Energy cards are secret rare ones as not only does it cost alot, but it also looks phenomenal too

For example, card art from Japan's The Glory of Team Rocket and Heat Wave Arena sets was featured in English's Destined Rivals set