The four big hitters of Blue-Eyes, Red-Eyes, Dark Magician, and Exodia are some of the most valuable cards in Yu-Gi-Oh
They are a group of Level 4 handtrap monsters that, if the user controls no cards, can be discarded as a Quick Effect to allow them to draw a card whenever the opponent Normal or Special Summons monsters from certain locations for the rest of the turn, similar to the infamous "Maxx 'C'", but if the user has more than cards in their hand than the number of cards their opponent controls (plus 6) at the end of the turn, they must randomly shuffle cards from their hand back into the deck
From what Ive heard the psa submission tracking is pretty poor (lol) so its very possible that your cards are further along in the grading process and you wont be updated as its happening
It is similar to the existential riddle released in the previous expansion in that it weakens enemies by allowing them to acquire certain keywords
Before the Duel, Team 5D's gave their Signer Dragons to Yusei and Z-one caused six monitors to appear around the Divine Temple, so that the citizens of New Domino could watch the Duel
The combo starts by typically searching or sending "Water Enchantress of the Temple" to GY then using the effect of "Water Enchantress" to search "Rite of Aramesir", which culminates into searching or Summoning "Wandering Gryphon Rider", "Dracoback, the Rideable Dragon, or "Illegal Knight" to provide various disruption effects