Not sure what class type to give the scientists from the Geass Institute. In MtG "researcher" normally means "wizard", but in this set I'm reserving "Wizard" for people with actual supernatural power.

Like Inventive Technician this is repeatable card advantage, but only in a very dedicated deck.

This basically seems unworkable. I tried two of it in a 60-card deck with 11 Geasses, and they still never hit. Tapping your 2/2 that's wearing equipment is a fairly big cost (it was usually done after declaring blockers, but that isn't the optimal time to cast every Geass). For the chopping board, I fear.

Make it reveal + draw?

Or, possibly more sensible for a researcher; equipment instead of geass?

You also need at least a few "Count # of geass in play". Oooh, an obvious one would be to add # geass to controllers devotion. For yourself to boost to big #, or on someone else to overboost them to hard to use.

Blue in this set gets two different categories of researchers: lots of the artificers who build mecha and care about artifacts (Sakuradite Engineer, Inventive Technician, several more planned), and a handful of researchers from the Geass Institute / Geass Directorate, the secret underground cave research base from the second season.

Note that the current tentative plan for Geass phrasing is to make them all instants/sorceries and thus exiled, not "in play". Counting the number of Geasses in exile is a moderately weird thing to do, moderately breakable in conjunction with other "exile half your library" cards, and doesn't correspond to much in the series...

When you say "devotion", do you mean "decadence"?

I really need to watch the second season and comment on more cards :)

If you go with the geas-exile plan, you might be able to rescue cards referring to that. Say, write "cards under a geas" and define that in the rules to mean, "have been targeted by a geas at any point" or "has an ongoing 'can't be targeted by a geas' effect" etc. Or define it like haunt if that's not too complicated. Assuming geases are still usually represented by the exiled card being physically placed with its erstwhile target, it would be practically easy to track, and then maybe worth making it work if it's easy to do in the rules.

That's true. It'd be quite natural to define a term for that if we wanted. "Haunted creature" was a term, and there could have been a card that counted the number of haunted creatures, although there wasn't. Going to a much more common phrase there are only ten cards in MtG's history that care about "enchanted creatures" and five of them are the Fencer's Magemark cycle! But yes, it's something I could easily do, if I had good reason. I can't think of a flavour reason to do that from the series, and I don't see a mechanical reason to do so either based on our playtest games. (Remember that the blue-red deck had an excessive number of Geasses, way more than is sensible, principally for the aim of trying to make this card work. My current reckoning is that in Code Geass limited, the typical expected number of geassed creatures on the table will be about 1.

The previous version of this was awful. (T: Look at top card; if it's a Geass you may play it.) Significantly upgraded. Now works nicely with the many Equipment in the set, as will be a theme among the blue cards; also still works with Geasses; and if you don't like the card it lets you optionally put it on the bottom. So it's strictly better than ": Scry 1". (Which is fine as that's an ability on a bad common Sigiled Starfish.)