The +1 that gives you two mana is very good
Whenever it or another Ally enters, you can essentially scry the top four cards of your library, and put any Ally cards you find back on top while the rest go to the bottom (although, you can choose to put Ally cards on the bottom as well if you don't reveal)
It takes a little work you need a high concentration of noncreature spells and the ability to get delirium, but the payoff is worth the price
This means having early blockers PuPu UFO, Demon Wall, Scorpion Sentinel, Sahagin, Magic Pot, or just any two-drops you can find
Ok Garnet, Princess of Alexandria #222 (Magic Final Fantasy) Details Full Price Guide: Garnet, Princess of Alexandria #222 (Magic Final Fantasy) All prices are the current market price
You can play this Orzhov commander along other iterations of Teysa that double death triggers to be even more effective