It can only be built by Town Hall 12 users (Workshop level 3), but it can be donated to Clan Castles level 6 and higher, which requires a Town Hall 10. Unlike its other Siege Machine siblings, the Stone Slammer does not fly directly towards the enemy Town Hall. Stone Slammer is a heavy-duty flying mountain ready to bring devastation on your opponent. Stone Slammer is a flying Siege Machine unlocked on Town Hall 12.
'The Stone Slammer is a heavy-duty, flying mountain that targets defensive buildings by flattening them with giant boulders and causes earthquakes.
