siege trent bug ?

[Asamira]

Please, I apologize in advance, I asked people, no one even googled how it is, it doesn't work here, it's a siegerent, it can't be spelled out, I put a sign on the ground, I use it, but it didn't do anything so I could use better conquering devices, is it bugle or lvl limited please or how to grant it please? I'm very sorry, I don't know how to help, nobody knows