There are also Neutral cards, which can be added to any deck, and Dual-attribute cards - which draw upon two different attributes, meaning they can only be paired in decks that offer those same attributes
That means that if there are both holofoil and reverse holofoil versions of each card available in a particular set, such as in the Legendary Collection Expansion, the Master Set must include holofoil, reverse holofoil, and non-holo versions of each card (if they exist)
Play Rule #13 states: Abilities which refer to other cards owned outside the game (Wishes, Spawnsire, Research, Ring of Ma'ruf) do not function in Commander without prior agreement on their scope from the playgroup. Therefore, Spike is twice banned in Commander, and even if Unstable were allowed, Spike wouldnt be able to be played
Every creature and every beast that has been twisted and enhanced by the power of the Mirari is in the set because Legions is 100% creatures
The difference is that for the video games this is an outrageous con, a way to charge you twice for one game, but in the card game it's actually pretty advantageous for the consumer
The Amber/Emerald deck is where you'll find most of the Toy Story characters, along with Merida and other glimmers who are archers and explorers