@Whiskeyjack is right about the Primal, guild war troops and old weapons (the weapons are periodically obtainable via real money purchases only)
here is list of cards in console:
im not sure how it goes in console but when in the pc/mobile a new troop is released via “weekly event” - that troop doesnt go to gold/glory/gem/vip chests until next “monthy chest update” happens (where all the event-troops from month ago are getting added to those chests)
i think console could have some “delay” similiar to that
so in a way certain troops may be not obtainable for a while after their initial release (they can still show up in event chests depends on the event kingdom) - but that may require someone from console to confirm that (im only a pc/mobileplayer)