Rarity can often be identified through symbols, set markings, and limited distribution methods
Cards which reference "playing for ante" or belong to the 'conspiracy' card type are universally banned, as are previously released cards that Wizards of the Coast has reviewed and now deems racially or culturally offensive
Aclazotz, Deepest Betrayal / Temple of the Dead Listed at: $6 Aclazotz, Deepest Betrayal is discarding menace where every opponent must discard a card each time you attack, which is easier to do since this bat god files
The inherent card advantage presented by this did make this somewhat popular nearer to the end of the limited format
Right now hes focusing on the gen 1 cards
If a token or a card that isn't represented by a transforming double-faced card becomes a copy of a Siege, it can't be cast as its triggered ability resolves