“It rolls over and damages anything in its path, then breaks open and out pops a Barbarian! How did he get inside?!”
The Barbarian Barrel card is unlocked from the Barbarian Bowl (Arena 3). It is an area damage spell with a moderate area of effect and damage. When cast, the Barbarian Barrel rolls across the Arena, damaging ground troops and buildings in its path. After rolling for 5 tiles, it will break open and release a Barbarian. A Barbarian Barrel card costs 2 Elixir to cast.
The Barbarian Barrel can be used in a similar manner to The Log, but it will not reach the Princess Tower before releasing its Barbarian. However, the Barbarian can follow up and attack anything still alive.
The Barbarian Barrel can counter lone support troops such as Wizard, Witch, and Executioner as they cross the bridge. If the Barbarian spawns near the troop, the barrel's damage and the Barbarian's damage can kill the troop.
The Barbarian will fail to take out these troops on its own unless they are distracted with something else, so be sure to have support from the Princess Tower or another unit when defending.
The Barbarian can be used as a tank for a mini-push.
Therefore, it synergizes well in Graveyard decks as not only a defensive support card, but also as a secondary tank that threatens the tower on its own and tanks for the Graveyard's Skeletons.
The Barbarian Barrel is a decent counter to a Graveyard push itself. Wait for some Skeletons to build up, then deploy the barrel. After it finishes rolling, the Barbarian will help take out and tank some of the Skeletons.
Keep in mind that despite appearances, the Barbarian Barrel is not as wide as The Log, so some Skeletons may seem like they are in range of the barrel when they are not.
The Barbarian Barrel cannot take out equal level Princesses, Dart Goblins, or Rascal Girls with just the barrel's damage, meaning an extra swing from the Barbarian is needed. However, a Barbarian Barrel one level higher than these units will be able to take them out without the Barbarian's help.
The Barbarian can help counter air troops placed close to the center of the arena, such as a Baby Dragon or Minions. Place the Barbarian Barrel so once the enemy troop is in range of the Princess towers, the Barbarian will spawn slightly in the lane opposite of the air troop. This will kite the air troop into the opposite lane, giving your towers ample time to chip it down.
The Barbarian Barrel card was added to the game on 6/4/18.
On 25/4/18, the April 2018 Update increased the Barbarian Barrel’s range to 7 (from 6.5).
On 4/6/18, a Balance Update increased the Barbarians‘ hit speed to 1.4 sec (from 1.5 sec).
On 20/6/18, the Summer Update increased the Barbarian Barrel's damage by 17%, and allow the user to see where the spawned Barbarian will be after it is used. It also moved the Arena to unlock this card from Hog Mountain (Arena 10) to Barbarian Bowl (Arena 3).
On 3/9/18, a Balance Update decreased the Barbarian Barrel's Elixir cost to 2 (from 3), decreased its range to 5 (from 7), decreased its damage by 9%, and removed its ability to knockback troops.
On 1/10/18, a Balance Update made the Barbarian Barrel roll faster and deploy the Barbarian quicker.
On 3/12/18, a Balance Update decreased the Barbarian Barrel’s damage by 5%.
On 7/1/19, a Balance Update decreased the Barbarian Barrel’s deploy time (the Barbarian will not attack for 0.15 seconds after jumping out of the barrel, allowing other units to be placed close to it so that it retargets onto those).
On 4/3/19, a Balance Update decreased the Barbarian's hitpoints by 13%.
On 3/6/19, a Balance Update decreased the Barbarian Barrel's Damage by 10%.
On 1/7/19, a Balance Update fixed a bug where the Barbarian Barrel's width was actually 3.9 tiles (decrease of 1.3 tiles to correctly match vision of Barbarian Barrel's width: 2.6 tiles).