Twilight Masquerade is a fantastic set to explore because it contains many cards that could potentially see competitive play
The Eye of Timaeus , The Fang of Critias , and The Claw of Hermos are well-loved by Duelists everywhere for their ability to Fusion Summon a wide variety of unique monsters using only one material
Cards like Ariel, Spectacular Singer
I put in Broww and Veil of Darkness to draw more cards until I get the added Snowws
With Irida, Potions, and perhaps even Misty in tow, this card can make the battle difficult for your opponent
Eminence is one of the most powerful mechanics in all of Magic, and Edgar Markov has one of the best eminence effects, so much so you could just play Vampire cards you found in a bulk bin and still have a great deck