Some key words aren't part of the revelation effect, currently including Hidden (though it has little effect on its own), Peril (you can't cancel another player's treachery with this keyword, though this is more a Ward of Protection (2) problem) and Surge - yep, you're still drawing another treachery, even if you cancel this one
Pricing these types of cards is really tricky too, so you end up in a situation where you dont know what the price of something should be - and it is going to take maybe months to find a buyer who can tell you what that price is
, : Target Zombie creature gets +2/+2 and has fear for as long as this creature remains tapped
Large Creatures Other cards were the reverse
Kessig Wolf Run The land hits keep on coming and this one leads directly to player elimination
It would have been nice to be able to undo certain moves in single-player, as Id often find myself accidentally setting a monster instead of summoning which would essentially waste my turn