Hm. Based on the second thread Toby linked above (which I was a part of but completely forgot existed) I believe this would be UC - Cheating. To quote from Uncle Scott's last post in that thread:
Originally posted by Scott Marshall:
While we can't force Alice to use mana abilities, we can record a GRV for starting to cast a spell and not being able to pay for it.
And if we believe that GRV is intentional, to gain advantage, and that Alice knew that was wrong? Well, now we have another conversation.
This situation seems textbook for this test. We can't force Adam to use his mana, but we can give him a GRV for attempting to cast his spells without paying mana (I believe the rationale for Adam casting his spell here, rather than just “showing cards” is pretty agreed upon and thus I'll skip over it). From there:
- Was it intentional? I believe so, due to Adam not only showing the cards, but also naming them.
- Was it to gain advantage? Most certainly, Adam thought he was about to win the game, and if Nathan scooped, he would have.
- Did he know it was wrong? This is a bit fuzzier and likely needs investigation, but like Uncle Scott above, I would need some pretty darned clear and irrefutable answer that he didn't before I believe it.
As for the secondary question, where is the line between “revealing cards” and “casting spells”, I think it depends on communication. For example:
Scenario 1) I show you Lava Spike and Lightning Bolt. I say “Lava Spike you, Lightning Bolt you, you're dead”, but I fail to tap my lands. That's “playing” but failure to pay costs; I have clearly identified the cards, I have clearly chosen targets, and since the game is about to be over, actually tapping lands is largely a formality since they're about to be scooped up anyway.
Scenario 2) I show you Lava Spike and Lightning Bolt. I say “I have these 2 cards and 2 untapped Mountains. Do you concede?”. That's “showing”; I have not made mention anywhere that I am casting the spell, nor have I chosen targets. I haven't even said anything intimating any sort of game result, like “you're dead” or “I win” etc. I simply asked if you would like to concede, out of the goodness of your heart, because I have these cards.
The exact line is somewhere in the middle between those, but that's where I stand on it, personally.
Edited Lyle Waldman (Aug. 15, 2016 04:54:59 PM)