It loses hitpoints over time and after 30s seconds it will get destroyed automatically.
It will release the troops either when it gets destroyed or you can also manually release the troops.
Well, the Log Launcher is unique in its find, though it has a little similarity with other siege machines.
For those who always want to send 3, a good reminder is that they can potentially get the same amount of quests.
The prior upper limit was 30.
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