Talk:Darkroot Garden/@comment-24.22.162.24-20130418122151/@comment-4511886-20130418125018

The forest is pretty PvP heavy so you're almost always being invaded in the forest (doesn't matter if you actually get invaded or not) and I think you can only connect 2 people to your world at a time, so the tries to invade you is why you can only summon one phantom.

That's the only explanation I can see. It might be something else though.