The alternate Aura form of Geass to Betray.

Hmmm. One downside to the plan of making all Geasses Auras is that it makes it much more subtle which ones can be used at instant speed and which are only sorcery speed. That little word "Flash" is fairly easy to skip over.

I'll try moving it to the very top (move the Geass reminder text to the end) to make "Flash" more prominent.

Another sign that 'instant' should have been a supertype all along.

I guess Alex, you could make instant a super type in your set if you wanted :)

I'm confused why any Geass at all is an Aura. First of all technically you are mixing subtypes of cardtypes were that are not supposed to share subtypes: enchantment with instant/sorcery.

But then you also do the haunt thing, where the mechanic works different on permanents vs. nonpermanents, which has been identified as one of the main problems with the mechanic (and in your case it clearly screws with the whole point of the mechanic since Disenchanting a Geass now opens the creature for a second Geass... as long as it was an Aura).

You could easily turn all Geass into Auras (some without static ability except for the implicit Geass protection), but you could ALSO turn all the Auras into sorceries with indefinitely lasting effects; after all you are exiling the sorceries by default already, so the memory issue is alrady solved.

It was originally designed that the ones with ongoing effects would be Auras, and the ones that are one-and-done would be instants/sorceries. Which you have to admit makes the most sense. As I mentioned waayy back when, over here, I acknowledge the subtype sharing between permanents and oneoffs is new, but I don't see any reason why it shouldn't happen; and I asked the Rules Manager at the time and he didn't point out any problems with it either.

That said, I do agree the playtesting showed that the difference between the Auras and inst/sorcs, while subtle and usually irrelevant, does come up occasionally. I don't recall why it was a problem, but I said so 4 years ago and I believe my past self :) Misinform is the common in the set that'll have it make a difference, and there are probably one or two uncommons/rares.

I disagree that Disenchant interferes with the point of the mechanic. Flavour-wise, the only magical effects in the series are Geasses and related things, plus one or two supernatural weirdnesses like the Collective Subconscious. In-set, there'll only be one Naturalize-type effect which will be flavoured similarly to Geass Canceller, which is also a thing that exists in the series. If someone wants to cross the flavour of sets (which always leads to flavour weirdness when crossing between high-magic settings like Dominaria and low-magic ones like Kaladesh), then I'm happy for Disenchants to undo the ongoing Geasses.

So I do need to either turn all Geasses into Auras, or all Geasses into instants/sorceries. I don't really like either of those which is why I haven't done it yet... This looks so much wordier than Geass to Betray, so I don't like the Auras option. I could try the sorceries option, and I probably will. It looks so weird to have the ongoing effects on sorceries, but it might be the least bad solution.

For what it is worth, I consider the sorcery option superior to the Aura option as well. It's the best way to convey "one and done" anyway.

But what about the cards that aren't one-and-done? Like the set's Pacifism, Geass of Inaction, which would need to stop saying

> Enchantment - Aura Geass
> (Enchanted creature has protection from other Geasses.)
Enchant creature
Enchanted creature can't attack or block.

and instead would say

> Sorcery - Geass
> (Exile this spell when it resolves. Its target gains protection from other Geasses indefinitely.)
> Target creature can't attack or block. (This effect lasts indefinitely.)

I feel like that would be pretty weird. It's not a concern on wordiness grounds, but it's just odd. I might still need to do it, but it's the opposite of "one-and-done": it's two permanent static effects.