For those of you who have been living under a rock, its a format where all cards from Return to Ravnica to the latest set are legal
Occasionally a trap card in the anime gets played directly from the duelist's hand, which can't be done in the real game, as if it were a "Quick-Play" spell card
Now that the majority of printed Relic Binds have the new text, we are beholden to that text as the current printed intent of the card
It does basically what Vampiric Tutor does for you but it can do that potentially up to five times in a single cast
After that, there are Unlimited cards: a much larger print run, and a much less exciting find as a result
It was banned, and while there were a lot of debates about what cards did and did not deserve their fates this was never one of them