MLPSnowflakeSapphire 's oc review-

Name: Frostbit
This is a great name especially for a MLP! Most people just name them after humans!
Fandom: MLP
I like this Fandom, lets see the other things
Age: 12
This is a nice age but this makes them not able to do many things like drive but.... well ponies don't drive but you get the point
Appearance: Mane and tail: crystal blue 💙
Style: just like egg hatched rainbow heart at my adoptables
Coat: crystal white
Oh my gosh! This changed everything! Most people name there ponies and when you see there colors they look nothing like it! For example purple night and their coloring is blue! Great job
Backstory: Frostbite is friend with (MLP versions of) Chara and frisk.... Chara teacher her to be a timeline eraser and go to the genocide route since she sometimes can reset but for sometimes she just continues... (sorry her age is 12) then she starts killing the most powerful ponies in equestria.... sometimes she sneaks for a surprise kill attack and frisk tries to stop her but Chara doesn't... she wants this timeline be destroyed and erase and doesn't want to forgive...
Well... I'm sorry to say being a timeline easer is pretty cool and awesome but is rare.... maybe you should have a weakness like what she eases will do damage to her or something. Also im not sure but are Chara and Frisk undertale characters? If anything make other characters or use someone characters oc that's there ok with you using

Summary-
Everything was good from the name to the color but you need to make different characters to fill Chara and Frisk's spot. You can continue the ease timeline stuff but you need to make a weakness when, before, and or after she uses it.