While doing research on this identity. I found that most cards that have the word "reveal" on them involve psi games. And of the ones that are left, a large chunk have the runner revealing something (traps, cards like Tyson Observatory or Oracle May ), which doesn't trigger Hyobou's ability. Good to know.
So, what DOES get you that sweet corp money? For starters, Celebrity Gift gains you 8 credits instead of 7. Pretty sweet. Attitude Adjustment gives you a buck even if you shuffle just 1 agenda back into R&D. Drudge Work will gain you +1 on top of the value of the agenda. Fast Track and Political Dealings reward you for going fast.
Also, since the ability works on the runner's turn as well, the grail ice suit is particularly suited for Hyobou. Lancelot, Merlin, Galahad, they all make you dough if you have ice to reveal in HQ.
Apart from that, Hyobou's build-in click ability is ideal to get a sense of what is in the runner's hand. Instead of just clicking for a credit, this allows you to play cards like Targeted Marketing and Salem's Hospitality. And if you have a good memory, you can easily leverage this ability into a potential kill with newcomers Saisentan and Complete Image. Do keep in mind that while you can reveal several cards per turn, you will only gain a credit the first time.
Last but not least, this card has fun synergy with some janky cards. Bamboo Dome and Open Forum are now credit neutral, Recruiting Trip is cheaper, you can install and rez Chiyashi for 4 credits, use The freakin Twins... If only Angel Arena were an asset, a clickless scrying and credit seems ridiculous.
This ID is very versatile and I am excited to see what people will cook up during deckbuilding.
This review is great but it hasn't mentioned probably the best interaction for this ID: Jinja City Grid. A free credit for most ICE installs is an excellent sell for a glacier deck. Flower Sermon is also a nice addition (and came out after thew review, in fairness to the OP), giving runner's turn triggers of the ID AND even more Jinja synergy.
— bowlsleyThe corp reveals Subliminal Messaging when retrieving it from archives. (Wasn't in rotation at time of review.)
— Neuvost