![coc builder hall 9 coc builder hall 9](https://www.allclash.com/wp-content/uploads/2021/01/bh9-base-january-18th-2021.jpg)
Focus on upgrading the troops you use for attacks and Cannon Carts as a priority, then use any remaining elixir for upgrading the Battle Machine. This is possibly the toughest of the requirements as a lot of elixir is required to reach level 30.
#Coc builder hall 9 upgrade
Requirement 5: Upgrade the Battle Machine to level 30 It is worth prioritising upgrading this once your reach BH8 as it is the only requirement that costs Builder Base gold to upgrade, allowing the elixir to be used for upgrading the Cannon Cart and Battle Machine. The Mega Tesla is available at Builder Hall 8. Requirement 4: Upgrade the Mega Tesla to level 9 This will allow you to win more battles due to attacking with troops that are a suitable strength, but still make progress towards this requirement for unlocking O.T.T.O. When prioritising laboratory upgrades, it is best to upgrade one or two of the main troops you use for attacking and then focus on the Cannon Cart. This means you can research the lower levels in the laboratory whilst upgrading other structures. The Cannon Cart is available at Builder Hall 5 once the Builder Barracks have been upgraded to level 7. Requirement 3: Upgrade the Cannon Cart to level 18 Because of this, it may be worth using a Book of Building from Clan Games or from the Season Challenges in order to immediately complete the Archer Tower and Mortar Gear Up in order to allow him to return to the Builder Base and continue upgrades there. This means he will be unavailable to carry out any upgrades within the Builder Base. When you start to gear up a defence, the Master Builder travels to Home Village in his own boat and performs the upgrade, however the gold required for the upgrade is Home Village gold rather than Builder Base gold. There are some requirements for each: Defence You can only gear up 1 of each structure rather. The 3 defences that you’ll need to gear up are a Cannon, Archer Tower and Mortar. You will need to have upgraded to Builder Hall 9 in order to be able to construct the O.T.T.O Hut, however you can start to work towards the other requirements before then:
![coc builder hall 9 coc builder hall 9](https://i.pinimg.com/736x/57/64/98/5764981cec3fba917f249bc45c62da75.jpg)
When the O.T.T.O Hut can be upgraded, a notification bubble is displayed Advertisement
![coc builder hall 9 coc builder hall 9](https://i.ytimg.com/vi/lCXzffSZiL0/maxresdefault.jpg)
When the O.T.T.O Hut is ready to be upgraded (due to the requirements for the next level being met), an info bubble appears above the O.T.T.O Hut that says “Upgrade”. Tapping on the O.T.T.O Hut shows the upgrade requirements If you attempt to upgrade when the Master Builder is busy with another upgrade, you will be prompted to complete the current upgrade with gems in order to upgrade the O.T.T.O Hut. Although upgrading to each level is immediate, the Master Builder needs to be available to complete the upgrade. The O.T.T.O Hut can be constructed as soon as the Builder Hall has completed upgrading to level 9, however levels 2 to 5 are unlocked by completing the requirements: LevelĪs the requirement for each level is completed, it is possible to upgrade the O.T.T.O Hut to that level. O.T.T.O is unlocked once the O.T.T.O Hut has been upgraded to level 5. Once unlocked, O.T.T.O takes over primary building duties in the Builder Base, freeing up the Master Builder to complete additional upgrades within the Builder Base or travel to the Home Village as an additional builder allowing you to have up to 6 builders. Use of the trademarks and other intellectual property of Supercell is subject to Supercell’s Fan Kit Agreement and FAN CONTENT POLICY.O.T.T.O is an invention created by the Master Builder available at Builder Hall 9. Supercell is not responsible for the operation or content of this application. This applicationis not affiliated with, endorsed, sponsored, or specifically approved by Supercell. Note: This is a FAN app for Clash of Clans. All builder base maps from builder hall 1 to builder hall 9 All maps from town hall 1 to town hall 13: war, farming, trophy, hybrid Here you can also get the best builder base layouts and share the great map of yourself to everyone. Maps for COCs or base layout for coc is collection new maps & layouts for player of COCs. Looking for a new design for your coc village? Do You want to share the strategy map, defense map, farming map for everyone? If your answer is yes then this app maps for clas of cla is yours!