FIRE/Sea Serpent/Xyz/Rank 4/Effect
2 Level 4 monsters
Once per turn: You can detach 1 Xyz Material from this card to activate 1 of these effects;
● Send 1 card from your Deck to the Graveyard.
● Choose 1 monster from your Deck and place it on top of your Deck.
I'm not advocating for its return, but in this new age of Links, MR4 and whatnot, could it come back, at the very least at 1? I remember its major problem was Summoning it repeatedly in a turn to use its effect multiple times, but under MR4 that wouldn't be nearly as practical to accomplish, even less if it was Limited.