When you sort cards by Name, this is the very first card.
Archer Queen
This is what the Card Boost Potion does.
boosts a card to your King tower level for 3 Hours.
This is the name of the very first Arena.
Goblin Stadium
This is what these Evolutions share: Ice Spirit, Snowball.
They all slow down troops
These are the cards that show a pig in their card icon in the collection.
Tornado, Royal Hogs
These are all the 7-Elixir cards.
Pekka, Royal Recruits, Mega Knight, Electro Giant, Lava Hound
This is the number of "Books" there are in the collection.
5 (Common, Rare, Epic, Legendary, Books)
This is the only Arena that gives you a card Evolution.
Arena 18 / Silent Sanctuary
This is what these Evolutions share: Wall Breakers, Battle Ram, Goblin Giant, Skeleton Barrel, Royal Giant.
They all target Buildings.
When you view a card in your collection and watch what they do, this is the emote that plays at the start in the top right.
The King Thumbs-Up Emote
These are the cards currently level boosted.
Baby Dragon, Balloon, Golem, Tornado
This is the only item in the Collection that doesn't have a limit to the amount you can have.
Elite Wild Cards
These are all the cards unlocked in Arena 17.
Boss Bandit, Archer Queen, Mighty Miner.
This is what these Evolutions share: Goblin Cage, Furnace, Witch, Goblin Giant.
They all spawn a troop not in the name.
These are all the troops in the name of Arenas.
Barbarian, Pekka, Rascals, Miner, Executioner.
These are all the troops that ride something.
Hog Rider, Prince, Dark Prince, Ram Rider, Spirit Empress
This is the maximum amount of Rare Wild Cards a player can have at a time.
1250
This is the first Arena that gives you an emote as a reward.
Arena 7 / Royal Arena
This is what these Evolutions share: Mortar, Goblin Cage, Goblin Drill.
Only buildings that can spawn minions
There is an ad for Clash Royale where a man goes onto the streets and will pay people money if the "know anything about Clash Royale". This is the first question he asks someone.
In the Game which King is the good King?
These are all the Buildings that do something when destroyed.
This is the order of all the items in the collection.
Common Wild Card, Rare Wild Card, Epic Wild Card, Legendary Wild Card, Champion Wild Card, Common Book of Cards, Rare Book of Cards, Epic Book of Cards, Legendary Book of Cards, Book of Books, Magic Coin, Card Boost Potion, Elite Wild Cards, Evolution Shards.
These are all the cards unlocked in Arena 10 / Hog Mountain.
Tesla, Elite Barbarians, Minion Horde, Furnace, Zappies, X-Bow, Hunter, Golem.
This is what these Evolutions share: Valkyrie, Wall Breakers, Goblin Giant, Cannon.
These can deal damage to air troops, while not being able to target them.
These are all the cards beginning with the letter T.
Tesla, The Log, Three Musketeers, Tombstone, Tornado