I'm kinda wary of this card :) It doesn't seem too good to me. It of course brings back memories of False Echo. That card was never used except in that dreaded DDoS combo. Wari has been worded so that that combo can't be repeated, and in so doing, it is strictly worse. First off, you can and likely will totally whif with this card if you don't have support. You can't expose a rezzed card, so you have a one in 3.2? maybe, chance of getting it right if you just guess.

Now if you first expose the card (or have derezzed it previously), and it is in fact not a trap or mythic, you can add it to HQ. This will set the corporation back a single click and maybe a couple credits. But you have diluted HQ and now have the possibility of accessing that ICE. Perhaps you can follow up and have an easier time accessing the server you removed the ICE from. Inside Job or Spear Phishing would probably have been easier though. I could see perhaps using this to make an Apoc easier, but I just don't see it being used much, at least with the current card pool.