Because we now have a set actually called New Phyrexia, this seems like a logical time to revisit this. But the Phyrexian symbol is a bit more front-and-center than it used to be, and there's not much Arcana value in showing Blind Zealot and pointing out the Phyrexian symbol:
See, it's not as much fun to point out things that are in the foreground of the art. It's like saying "Did you know that there's a goblin in the art of Bloodcrazed Goblin?" If everyone just says, "Yeah, I did. It's right there," then the Arcana hasn't done its job.
Luckily, New Phyrexia has a couple of cards that have some Phyrexian symbols you might not have noticed, thus justifying this Arcana's existence. For example, you might not have noticed the fence in Norn's Annex:
See? The fence is made up of a lot of Phyrexian symbols!
...Okay, some of you aren't impressed. "We saw that right away," you say. Try this on for size:
That, of course, is Kiln Walker. Oh, what's that? You don't see the hidden Phyrexian symbol? You've come crawling back in apology? Okay, then. To see the symbol, go ahead and click the picture. There you go!