Thankfully, however, there is a good reason this Lord of the Pit cost so much: its rarity
Sometimes calm is the whole point
Their opportunity cost is very low, even if the effect isn't anything crazy
If you can protect the Enchanter long enough to get at least one attack in, you can do busted things, like assemble the combo of Phyrexian UnlifePhyrexian Unlife and SolemnitySolemnity over three turns (casting Zur and attacking twice): Even without putting together a combo, Zur can fetch up Stax-style enchanties like Mystic RemoraMystic Remora, PropagandaPropaganda, Ghostly PrisonGhostly Prison, Blind ObedienceBlind Obedience, and many more
This, in turn, makes Elspeth Tirel a strong fit for the deck, and Miku, Divine Diva an even better one