There should be other ways to obtain the Field notes.

[Vahlnir]

Okay, so I got all the field notes from the Southern Front, and the first raid.

Now I've done 17 runs of Delubrum, and still zero trinity avowed notes.

THIS IS AGGRAVATING. JUST GIVE ME THE DANG NOTES. :L SEVENTEEN TIMES IS ABSOLUTELY ABSURD. I HAVE SEEN THE FIVE STAR SAVE THE QUEEN DROP AT LEAST FIVE TIMES, BUT I HAVE NOT SEEN A SINGLE TRINITY AVOWED. TRINITY AVOWED IS FOUR STARS. THIS SHOULD NOT BE HAPPENING.

Yeah, some of these are not a walk in the park to obtain. I apparently dodged a few proverbial bullets going through BSF the first time by getting 2 of the highest rarity fate drops, but I'm paying for it now with Lyon. lol That's the only one I have left to get in BSF, but I know all too well that it's almost always the last one that is the most painful to grind.