Cannon

"Defensive building. Shoots cannonballs with deadly effect, but cannot target flying troops."

Summary

 * The Cannon is unlocked from the Barbarian Bowl (Arena 3).
 * It is a short range, single target defensive Building with low hitpoints and moderate damage.
 * It fires cannonballs toward ground Troops, and is unable to target air troops.

Strategy

 * The Cannon can be used defensively behind Crown Towers to help defend. This strategy is effective while dealing with troops that either charge (Prince, Dark Prince) which can deal unprecedented damage in short amounts of time if left alone, or even swarms of ground troops due to its high rate of fire/DPS.
 * Cannons can be effectively destroyed with flying air troops, such as Minions, Balloons or a Baby Dragon to demolish the defensive Building, without the player's troops being targeted.
 * The Cannon is best placed in the radius of the user's Crown Towers, to prevent flying troops such as Minions from destroying it.
 * On the other hand, if the Cannon is ever placed out of range of the Crown Towers, the attacking player can use air troops to destroy the cannon unhindered.
 * The Cannon can be extremely useful for taking down Barbarians or a Hog Rider if placed in the right area. A Cannon/X-Bow combo or a Cannon/Inferno Tower can wreak havoc on high-hitpoint troops.
 * It has a short range so placing it beside the Arena Tower will render it useless against Spear Goblins, Archers and Musketeers.
 * Keep in mind that Musketeers can out range the cannon, so be careful when using the Cannon against Musketeers.
 * The player can, however, place the Cannon while the ranged troop is in the range of the Cannon to prevent ranged troops from out ranging it.
 * The Cannon can be used as a cheap card to distract/take out defensive buildings with its moderately high hitpoints and DPS.
 * Usually only defends 1 wave of attack. It either doesn't have enough duration or HP left to stand another attack.
 * The Cannon also makes a great distraction for dangerous troops like Princes and Balloons.

Trivia

 * On 2/2/16, the February Update decreased the Cannon's Elixir cost to 3 (from 6), its range to 6 (from 7), its lifetime to 40 sec (from 60 sec) and its hitpoints by 55%.
 * On 23/3/16, a Balance Update decreased its lifetime to 30 sec (from 40 sec).
 * On 3/5/16, the May Update decreased its hitpoints by 11%.
 * This update also fixed the "range bug" and decreased the Cannon's range to 5.5 (from 6) but its effective range is unchanged.
 * On 18/5/16, a Balance Update decreased its hitpoints by 5%.
 * On 21/6/16, a Balance Update its hitpoints by 8%.
 * The Cannon and the Tombstone are the cheapest buildings, costing only 3 Elixir.
 * The Cannon resembles the level 4 Cannon from Clash of Clans.

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