I could have used any other "instead of accessing" card, but Siphon is the biggest example.
I firmly believe the cards work perfectly together, but it is stirring lots of discussion within my playgroup, and I wondered if there was any official say on it, or at least the general consensus.
I wouldn't like to have to wait till release to have something official on it.
Card texts for reference.
A(3)
Make a run on HQ. If successful, instead of accessing cards you may force the Corp to lose up to 5, then you gain 2 for each credit lost and take 2 tags.