Bulk Foils Acquired
I just spent the day sorting through a cheap lot of loose bulk foils I bought on a local marketplace.
The listing was from France, but the cards are in English: the remains of two boxes of English language Collector Boosters (24 packs total). This may seem strange given that Avatar UB also received a French localisation, but the only Collector Boosters that have a chance at containing the Raised Foil Avatar Aang are the English packs. There's little doubt that the seller is on the hunt for the Avatar, and is likely fuelling that search by selling off unsorted bulk for cheap.

It was quite a bit of work to sort through everything. Somewhat unsurprisingly, the lot had been stripmined of any value. It was entirely made up of TLA commons, uncommons, lands, and tokens. Not a single TLE foil to be found. I knew that the rares would've been skimmed, but I was a bit disappointed to not make any progress on the TLE front, given that those foils can only be found in CB packs.
That said, the sheer mass of bulk contained plenty of foils I was missing. I've now plugged nearly every single hole for TLA commons, uncommons, and lands.
The tokens in particular were an unexpected windfall. I have now obtained every single foil token, bar one: the foil Treasure token, TTLA #22. For anyone unfamiliar, the token cards in this set are double-faced, so for instance an Ally token can be flipped and used as a Food token instead. For my binder, this effectively means I have to obtain two copies of each token in foil, since one physical printing counts for two tokens. From what I've seen, the printings seem to be consistently paired, though there is some level of variation. Interestingly, for the missing Treasure token, I have only seen it paired with one other: TTLE #1, the Aang, Awoken Avatar (Marit Lage) token. I'm sure the very mention of TLE ensured no copies were included in this bulk lot, but it won't be difficult to track down another foil at some point. The only other TLE token is TTLE #2 (Soldier), which apparently only comes in non-foil.