The Brothers' War was a tale lost to myth and legend The Brothers' War contains 101 commons, 80 uncommons, 63 rares, and 23 mythic rares
Panglacial Wurm is a fan-favorite for a reason, and combining that idea of library-shuffling value with a cheaper, reusable payoff seems like it gets closer to an actual win condition
The Scarab God I, personally, want to immediately concede whenever someone decides to play this against me
A double-faced permanent on the battlefield still cant be turned face down
(It's what we in R&D refer to as a reset button.) Jokulhaups wasn't the first reset button (Alpha, after all, had cards like Balance and Nevinyrral's Disk), but I think it's become the definitive one
RG decks love big power creatures so this will fit right at home in those builds