As Gabe Newell once said, Piracy is a service problem. In the context of Magic, the service problem is just the high cost of cards
Those 1/1 tokens it spawns makes the triggered abilities of your shrines snowball, and its ability to bring your shrines (and other enchantments) back from the graveyard can be pretty powerful once youre able to pay the cost
Artifact Creature: Phyrexian MetamorphPhyrexian Metamorph, 155812 Inclusions Enchantment Creature: Nyxbloom AncientNyxbloom Ancient, 82729 Artifact Land: Silverbluff BridgeSilverbluff Bridge, 62657 Kindred Enchantment: Hoofprints of the StagHoofprints of the Stag, 4988 Kindred Instant: Blades of Velis VelBlades of Velis Vel, 4817 Kindred Sorcery: Boggart Birth RiteBoggart Birth Rite, 1813 Instant Sorcery: Flotsam // JetsamFlotsam // Jetsam, 1450 One of the most flexible cards ever printed, Phyrexian MetamorphPhyrexian Metamorph can come down as a copy of any creature or artifact on the entire battlefield, and can discount itself while it's doing so
It especially excels in Najeela, the Blade-Blossom decks, where every warrior that enters and attacks immediately makes the token engine even scarier