alright here’s how i lost my delta scizor (this is a randomized nuzlocke btw, but i only have the randomized challenge mode on however)
Sooooo basically after deuk helped me fix my randomizer because it wasn’t working properly, i went to the black market and idled for a while and did stuff, i evantually ended up in the black market and got my custom move.
My scizor had the moves: Icicle Crash, Low Sweep, Slash and Blizzard. It was actually helping my team with my dark type issue i had. (My team was: Delta Gallade, Delta Snorlax, Delta Venusaur, Delta Scizor (obvious), Dialga [starter 
] and a Garchomp). I gave it the move over Blizzard.
####Spoillers from this point on about the game, stop reading if you don’t want spoilers :l ####
anyway, i went to fight Taen (by the way, i had the delta scizorite before you get the mega ring, which i had to fight taen for so i can mega evolve it), the first pokemon he sends out is a darumaka vs my delta scizor. Knowing darmanitan competitively, it uses Flare blitz alot, so i was pretty sure this thing had flare blitz. Despite that, i STILL didn’t switch out.
I use my custom water move.
It lives at the red.
aaaand flare blitz
next thing i knew my d scizor was dead ;A; I was upset about that, however i can’t really blame myself, since i stayed in on a fire type. I also had a lax nature and there was a part of me saying "you have high defense + lax, youll live barely unless burn." What was worse about that is that is that i got the mega ring AFTER my delta scizor died… (╯°□°）╯︵ ┻━┻