She would be rated higher if it were not for the high number of other good fives drops and othe good "Nissa" cards
The many armed and faceless Eldrazi ticks many trope boxes, and while were used to see the monsters of our horror media tearing apart their victims, the composition of this piece stands out because of just how this mutilation is occurring from the back of the mind and exiting through the mouth
Being able to freely tap things and then sac it on the same turn is really a neat single-card synergy though, and since tap effects are easy to come by in the colors (which also inherently are colors with great artifact synergy!), I don't mind the cost as a whole when you factor in the full package
Once you find a way to lock down the board, use cards like Massacre Girl, Known Killer, Black Market, Morbid Opportunist, and Gisa, Glorious Resurrector to pull ahead and dominate the game