Use Magic Device question

[Omnitricks]

In the table, there is the emulate stuff like class feature, ability score, race and alignment.

Now looking at Besmara's Bicorn, there is an extra benefit if Besmara is your patron.

Would it come under class feature (since clerics and paladins get patrons?) or we can't emulate being a worshipper of a god?

[DM_Blake]

I'm sure this is just going to be GM's discretion.

I can't even find that Besmara's Bicorn, except one unlinked reference to it in a list of pirate-ish magic items.

Worshiping a god is not a class feature of any class; everybody can worship as many gods as they want. Even commoners are frequently worshipers of gods and even entire pantheons. Now, some classes (like clerics, paladins, oracles, etc.) have class features that are given to them because they are extra special worshipers and those class features are able to be emulated, but it doesn't make you a follower of Besmara.

As for the UMD skill, it doesn't let you emulate being a worshiper of a god, so if a GM wants to allow that, he'll have to house-rule it and create his own DC for it.