I've moved your original post to the correct forum (and left a redirect for the day), yet you still keep reposting in this forum. Please do not create multiple threads.
https://projectpokemon.org/forums/showthread.php?49128-How-to-gen-on-a-new-3ds-XL
Relearn Moves.
Plus, depending on if the event was released recently (after May 10th) the wonder card isn't stored inside PKHeX; expand via a "wc6" folder, add the wc6 in, then launch the program.
Pretty sure this was fixed 5 days ago:
https://github.com/kwsch/PKHeX/commit/c09a541b252c402a9549d55f971070428e34eb90
Works fine for me with latest commits.
No.
If you're on 10.1 there's still browser exploits for homebrew, and even if you're on 11.0 you can still use other primary/secondary entrypoints that are not free (ie, cartridge game exploits).
Actually I had moved it to ctrl-clicking the box tab.
Ctrl-Click Box tab -> sort current box
Shift-Click Box tab -> sort all boxes
Alt-Click Box tab -> delete current box
Shift-Alt-Click Box tab -> delete all boxes
whatever, two ways to access.
The proper question is 'any way to set up homebrew on firmware version 11.0?' (the answer is yes, see freakyforms for example).
PKHeX and its usage are unrelated to firmware version; it operates off files dumped from a 3DS.
Probably something to do with the damage formula, which is un-researched. Probably a move ID check that overrides the type effectiveness modifier.
http://bulbapedia.bulbagarden.net/wiki/Freeze-Dry_(move)#Effect
All that's needed to implement it is a list of valid item IDs (a subset of items that can be held) in the Legality tables, and a line/property-check added in the legality routines.
http://smogon.site/forums/threads/past-gen-rng-research.61090/page-30#post-3642140
http://smogon.site/forums/threads/past-gen-rng-research.61090/page-29#post-3526482
It's the lower 16 bits of the egg pid. The upper 16 are generated when the egg is picked up.