Minion Horde

Summary
This card is unlockable from the P.E.K.K.A Playhouse (Arena 4). Just as the Minions, the Minion Horde is a group of Minions that can distract any powerful flying unit, such as the Baby Dragon, the Balloon, or even normal Minions.

Strategy
The Minion Horde can be used effectively to support higher hitpoint troops, such as Giants, eliminating any opposing ground troops and distractions for the high hitpoint troops. The Horde can be directly countered by Arrows, eliminating the entire horde of Minions. A strategy to use is to use Hog Rider followed by Minion Horde, then using the Rage spell once they reach the Crown Tower. If left undefended, the Hog Rider/Minion Horde can destroy a Crown Tower with ease.

Barbarians

Summary
This card is unlockable from the Barbarian Bowl (Arena 3). A Card which summons 4 Barbarians, wielding long swords, with amazing blonde 'staches.

Strategy
The summoned Barbarians are effectively used to tank and deal damage while swarming with the cards' spawned x4 Barbarians. Barbarians are a great option to use, as the spawned troops have a moderate amount of hitpoints and damage, and are perfect in attacks against enemy cards and Crown Towers in conjunction with ranged support troops, e.g Archers or Musketeers. Barbarians can be effectively countered by the Witch and Wizard, since Barbarians have moderate hitpoints, and a slow movement speed, with the Witch & Wizard dealing moderate to high area damage. A powerful counter is the Fireball: the damage and radius of the spell is more than enough to lower all x4 Barbarians hitpoints by +75%, if the spell is cast correctly.

Trivia
On 2/2/16, the February Update decreased the Barbarians hitpoints by 4%. From the Knight's description, Barbarians are said to be distant cousins, due to their physical similarities, especially their awesome mustaches. The Barbarian is the first troop to be unlocked in Clash of Clans, but not in Clash Royale.

Minions

Summary
This card is unlockable from the Bone Pit (Arena 2). The Minion's appearance is that of a gargoyle with large horns, stubby wings and large hands with sharp vicious claws that are covered in what seems to be Dark Elixir (from Clash of Clans).

Strategy
The Minions should be used to attack other air troops and support high hitpoints troops like Giants. Minions alone, with no support, such as Archers, are not recommended, as the spawned unit's low hitpoints can easily be destroyed. Minions are extremely effective to destroy enemy Balloons, as the Balloon only targets Building, oblivious to the player's defending troops (the Minions).


Trivia
On the description of the Minion Horde, it mentions this type of troop. In Clash of Clans, the Minion uses ranged attacks instead of melee attacks in Clash Royale.

Knight

Summary
This card is unlockable from the Training Camp (Tutorial). The Knight is a melee troop that wields a long sword and has an amazing mustache.

Strategy
Due to the low Elixir cost and medium health and damage, the Knight is a good option to use with the damage dealing offense. Alternatively, the Knight can be used to back up higher hitpoint troops, such as the Giant Skeleton or Giant. Use the Knight as a meat shield for smaller troops, as it has high hitpoints. The Knight can only target one target at a time. Using cards such as Skeleton Army or Skeletons will distract and overwhelm the Knight.

Trivia
From the Knight's description, Knights and Barbarians are said to be distant cousins, due to their physical similarities, especially their awesome mustaches. When a Knight is defeated, his fallen sword is embedded in the Battle Arena's ground.

Archers

Summary
This card is unlockable from the Training Camp (Tutorial). The Archer is a ranged unit that wields a bow and bears an aqua-blue cape and an emerald green dress. She sports an unusual magenta colored haircut and is also included as a joke in her description.

Strategy
Archers are effective at supporting high hitpoint troops, such as Giants. They can be used effectively to counter low hitpoint troops, e.g Minions, Spear Goblins and Goblins) Archers can be countered with minor troops and the defensive support of the player's Crown Towers. Wait for the Archers to come to your territory and spawning low hitpoint troops to distract them.

Trivia
Sometimes, the player will hear the original Archer deployment sound from Clash of Clans when Archers are placed. Level 12 Archers can survive 1 hit from a level 1 Mini P.E.K.K.A.

Bomber

Summary
This card is unlockable from the Training Camp (Tutorial). The Bomber's appearance looks extremely similar to that of a skeleton, the exceptions being that it carries a black bomb and wears a blue cap with golden-rimmed pilots' goggles.

Strategy
The Bomber can be used as a defensive troop, taking out Skeletons, Skeleton Army, Goblins and Spear Goblins. It is also useful to defend high hitpoints troops against hordes of low health ground enemies, e.g protecting Giants against an opposing Skeleton Army. The Bomber cannot attack air units, making them vulnerable against Minions & flying troops.

Trivia
On 2/2/16, the February Update increased its hit speed to 1.9 sec (from 2 sec). One of the loading screens states, "One day, Wall Breakers realized that they could to a lot more damage if they THREW the bomb rather than sat beside it. Imagine that..." This is an allusion to Clash of Clans, as Wall Breakers sacrifice themselves to destroy walls, while Bombers' throw explosives from a distance, out of harm. Bombers are a variation of the Wall Breakers in Clash of Clans.

Spear Goblins

Summary
This card is unlockable from the Goblin Stadium (Arena 1). A Card consisting of three Goblins, identical to Spear Goblins spawned from the Goblin Hut, these Goblins are great support units to higher hitpoint Cards, when played offensively.

Strategy Spear
Goblins can be a good backup to higher hitpoints troops such as the Giant. Can be used effectively to take down air troops such as the Baby Dragon, Minions or Balloons. Spear Goblins are a great defense to your Towers against enemy air and ground Cards. As with other low hitpoint cards, they can be easly killed by spells, such as Arrows, Fireball and Rocket, taking into consideration the spells slight duration to cast, to lead the spells impact point.


Trivia
Multiple Spear Goblins can be spawned with the Goblin Hut. The Spear Goblins are far cousins of the Clash of Clans Goblins, which normally target resources.

Skeletons

Summary
This card is unlockable from the Bone Pit (Arena 2). The Skeletons card summons a pack of four Skeletons which effectively distracts and damages high damage troops with a slow hitspeed, such as P.E.K.K.A.s, Mini P.E.K.K.A.s and Giants.

Strategy
Skeletons are most effectively used to distract and/or swarm high hitpoint units, such as Giants, and the Prince. Skeletons can be used to deal damage to enemy troops when they are distracted by the player's higher hitpoint cards, such as Giants. If the player's Arena Towers are under attack by low hitpoint, non-area damage dealing, ground troops, the Skeletons can be used to distract the opposing troops, dealing damage to the enemy units. Skeletons are easily eliminated by an opposing Arena Tower, so it is recommended to use the card for defense & distracting opposing troops.



Trivia 
On 19/2/16, the Balance Update increased the Skeletons hitpoints and damage by 11%. The Skeletons spawned by the Skeletons card are identical to those spawned with the Skeleton Army and the Witch. It is the only card in the game that costs only one Elixir. This would mean that the Skeleton card is the cheapest card in the game. There are many variations of Skeletons: Bombers, the Bomb Tower (a defensive Building defended by a bomb-throwing Skeleton), the Skeleton Army, the Balloon (an offensive balloon manned by a Skeleton) and the Giant Skeleton.