Her ability to play a spell from the graveyard once per turn gives you plenty of options throughout the game, and she can often run a number of combos to overwhelm your opponents
Thats incredible for increasing +1/+1 counters, but since Phyrexians also love poison, it could be a game ender with the right setup
If the targeted opponent is at 37, theyll lose 19 life and youll gain 19, doming them for another 19 with Sanguine Bond
Noctis can manifest and wield special weapons thanks to his royal blood, though he must consume some of his own life force to do so
And then, on top of that, you get to move him to that location for free as well
It wasn't until I heard someone point out that this turns Monstrous Rage into Dark Ritual that my brewers brain started cooking