those were simple graphics replacements and not actual attack animation edits
in the case of knife moves, the graphic in the fury attack/horn attack slots was replaced with a group of knives
luna dial was a simple spoon > stopwatch replacement
they both had to have their palettes changed as well though
it's pretty simple to do, you just need to know how to use unLZ.GBA and understand what free space is
there's a few okay tutorials on pokecommunity but they may be dated
if a tutorial tells you to index your sprite don't worry about it because these are already indexed
anyway these are the images:
good luck
