Using the Skeletons card to summon 15 Skeletons would cost 5 Elixir, whereas using using the Skeleton Army card to summon 15 Skeletons costs 3 Elixir.
The Skeleton Army is 1 of the 14 cards associated with Skeletons, including the Bomber, Witch, Tombstone, Bomb Tower, Giant Skeleton, Balloon, Guards, Skeleton Barrel, Graveyard, Wall Breakers, Skeleton Dragons, Skeleton King, and of course, Skeletons.
In the card picture, each Skeleton appears to have a diagonal cross on its eye.
The Skeleton 'Larry' in the Skeleton Army's description is a reference to the Clash of Clans commercial, Larry.
It has the highest overall damage per second of any troop card, and the second highest overall damage per second in the game, second only to the Inferno Tower at its maximum damage stage.
The names of the Skeletons are Larry, Harry, Gerry, Terry, Mary, Barry, Cherry, Karrie, Faerie, Scary, Sherry, Gary, McClary, Huckleberry, and Ledoot according to this Reddit post.
The Skeleton Army is the only "value pack" troop card that has a different rarity with its corresponding "basic" troop card (as opposed to Minion Horde, Three Musketeers and Goblin Gang).
The Skeleton Army spawns the most troops of all troop-type cards, with a total of 15 Skeletons.
Along with the Skeletons, the Skeleton Army is the only swarm card whose members spawn all at the exact same time (not counting the spear goblin death spawn of the Goblin Giant).
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