The flashback on Memory Deluge isnt just free flashback value instead of looking at four cards, you get to look at seven
Three Paralyze are perfect removal for our deck as they give us some tempo by forcing our opponent to untap their creature if they want to interact with our game plan
If 3 is chosen, then it can only be damaged, enchanted/equipped, blocked, or targeted by cards that have a mana value of 3
With a high devotion to blue and ways to self-mill, this card is a superb alternate win-con
it theoretically handles fewer creatures, but not many players have more than 13 creatures by the time a board wipe is necessary, and sacrificing permanents gets around indestructible
I think its got a lot of potential in the 99 of various lifegain decks (both Trelasarra, Moon Dancer and Elas il-Kor, Sadistic Pilgrim spring to mind), but I could also see this as the commander of a creature-centric mono-white lifegain deck too