There are around 170 Black and Red cards, include split, hybrid, aftermath, and gold cards, but not cards with a Black and Red color identity, such as Soul Burn
And Westvale AbbeyWestvale Abbey pulls double duty as both a sac outlet and token maker (Ive heard having a 9/7 flying lifelinker is pretty nice too)
According to the Reddit user, it would take you roughly two years before you complete the set
Even if the other three players want to team up and join forces, the archenemy still gets the benefits of the card
I have always been a firm believer in the philosophy that If it has wings and it flies, it should have free retreat
The three Sacred Beasts are Level 10 monsters that require 3 of a card type (Continuous Traps, Continuous Spells, and Fiend monsters, respectively) to Special Summon