You are awarded a Bastion when you reach 5th level. During downtime, you can invest gold into your Bastion to upgrade it with new facilities and services. At the end of a downtime, you can choose a number of available services equal to your proficiency bonus and gain their effects until the end of your next adventure. You can gain multiple uses of the same service unless otherwise stated. See the original post here.
Acolyte Bastion: Church
The church is a place of worship, divine revelation, and spiritual protection where the faithful gather and miracles are performed. As an acolyte, you can use your Church to bless yourself and your allies with power from the Upper Planes.