I appreciate those of you who have patiently tried to explain this to me. Thank you.
I now see what I was missing before, and I have four suggestions for the REG:
1. Remove Unholy Writ from the Instant Ability Card List and add it to the Ongoing Ability Card List (maybe under miscellaneous or see suggestion #3).
2. Include "Manually Triggered Abilities"
inside the definition of "Triggered" in the glossary (Maybe as a see "Manually Triggered" with a link). The Glossary list is very long and easy to miss key parts. I had no idea that "Manually Triggered" was on the list. I went immediately to "Triggered," which does not include the "Manually Triggered" definition. I thought y'all were just stating it as a well known idea.
3. Add "Manually Triggered Abilities" to the Ongoing Abilties list.
4. "Play As" and "Errata" for cards in the REG need to be more clearly distinguishable. Either strike out the original wording or put the new SA in bold (for example). I sometimes do not even notice "Play As" when I am looking for a fast ruling.