Obstacles are random decoration items that spawn on your village. They are fixed and can't be moved, except if you use the Magic Item Shovel of Obstacles.
Troops can be spawned beside and/or on top of obstacles, so placing obstacles and decoration items on your village will not affect the enemy attack. In fact, they don't even show up on Clan Wars.
Removing regular obstacles can give you 0 to 6 Gems. On average, you get 2 gems per obstacle. The number of gems you get always comes on the same order, it's a cycle: 6, 0, 4, 5, 1, 3, 2, 0, 0, 5, 1, 0, 3, 4, 0, 0, 5, 0, 1, 0.
However, there are three independent cycles on your Home Village and Builder Base, but the gems rewarded always follow the exactly same order. The cycles are: obstacles in your Home Village, original obstacles on your Builder Base and spawned obstacles on your Builder Base.
The number of obstacles you can have at the same time on your village is 45. Gem Box and special obstacles do not count.
Vegetation respawns at a rate of one item per eight hours and rocks don't respawn (think twice before removing them). The only obstacle that will not respawn until you remove is the Gem Box. You can have only one on your village. This is a special obstacle that rewards you 25 gems.
When the game respawns an obstacle, the respawn weight represents the chance of that particular item being the one that appears.
|Type||Size||Removal Time||Experience Gained||Removal Cost||Re spawn Weight|
• Once rocks are removed, they do not reappear.
|Type||Size||Removal Time||Experience Gained||Removal Cost|
|Stone (Small 1)||2x2||10s||3||500|
|Stone (Small 2)||2x2||10s||3||500|
|Stone (Small 3)||2x2||10s||3||500|
|Stone (Small 4)||2x2||10s||3||500|
• Tombstones spawn on open fields when a troop dies.
|Type||Size||Removal Time||Removal Benefit||Event at which appears|
|Tombstone||1x1||Instant||20||Attacking or defending Elixir troop is killed.|
|Dark Tombstone||1x1||Instant||1||Attacking or defending Dark Elixir troop is killed.|
|Type||Size||Removal Cost||Removal Time||Experience Gained||Removal Reward||Respawn Weight|
|X-Mas Tree (2012)||2x2||25,000||30s||5||50,000||2%|
|X-Mas Tree (2013~2017)||2x2||25,000||30s||5||75,000||2%|
|Halloween Headstone (2014)||2x2||25,000||30s||5||75,000||2%|
|Halloween Cauldron (2015)||2x2||25,000||30s||5||75,000||2%|
|Scary Pumpkin (2016)||2x2||25,000||30s||5||75,000||2%|
|5th Anniversary Cake (2017)||2x2||25,000||30s||5||75,000||2%|
|Halloween Obstacle (2017)||2x2||25,000||30s||5||75,000||2%|
|Fireworks Stash (CNY 2018)||2x2||500||5s||2||25,000||N/A|
|Tree (CNY 2018)||2x2||1,000||5s||2||75,000||N/A|