Has anyone come across a master list of the built-in effects, transitions, generators, etc in FCP X (and, preferably, also Motion 5)? I could type it up myself, but I thought Apple or someone else would already have it.

all transitions, effects etc. are listed in FCPX. Its also searchable by words (not keywords unless assigned one in a self created transition etc.)

There is a little magic wand looking thing on the right side toolbar above your storyline. Click that and start browsing. I don't understand why you would need a list on a word document etc.

In motion 5, you can create virtually anything you want. Motion 5 isn't for just copying and pasting an effect without you modifing it. If you bought with "copy and paste" intentions, then you wasted your money. FCPX built in effects/transitions should suit you just fine.

Or maybe I'm missing something about your intentions?

Well, I still buy printed books, print PDFs of certain things, and generally like to have some info on paper. I would like to think about and imagine potentially useful effects and transitions in my projects when I'm away from the computer.