This deck combines green, white, blue, and black, each one representing a different color of a Praetor from New Phyrexia, only missing red since Urabrask is a rare Phyrexian who values independence and freedom rather than the single-minded expansion of Phyrexia
Deus of Calamity Deus of Calamity sees play in the so-called Ponza decks, which try to ramp into land destruction and keep making land drops while limiting their opponents
The only exception is where the set has a theme and, while that effect would normally be narrow, it's not in that particular environment
However, there are better alternatives like Urborg, Tomb of Yawgmoth, which turns all lands into Swamps without the need for additional mana to be spent
If your strategy benefits from holding up mana and shuffling specific cards from your graveyard away, this could be your card
Portent is almost identical to Ponder except it can target any player's library and the "cantrip" effect doesn't happen until the next turn's upkeep