Time to waste a few minutes on a suggestion again, that won’t reach anyone, who could implement it.
The number of ways, troops and weapons can be found, keeps growing. Chests, portals, event exclusive / vault and diamond eggs for the former, level rewards, recurring and unique event tiers, purchase-only for the latter, soulforge, campaign and kingdom paid passes for both… I bet, I still forgot something.
While those infos tend to be stored on external websites, it would be very helpful, if, just like with pets, there was an additional info sheet to them, that shows if and where they can be found. Would also help with the confusions about which tarot troops are released to the vault already.