It's various mechanics played well together when Spike-d hard and the resulting three major archetypes during this era all pushed synergies that were very powerful together
The clear protector is tear-resistant and waterproof which effectively protect your cards from outer elements like dust, water etc
If you intend to climb the YuGiOh Master Duel ranked ladder, you will likely need to use a meta deck that can stand against most card combinations
Some worry that at the Olympics, someone could pull out some unbeatable card options, with one Reddit user commenting, Im just waiting for the actual Olympics when his opponent blows by him and as he runs past him, the runner flashes all 5 pieces of Exodia. We look forward to seeing what cards the athlete will pull out next
The deck is slow to assemble but approaches unbeatable once the right five or six Elves hit the graveyard
When it shows up for the first time, point it out