The best way to spot scratches is by holding the card foil up to the light and turning it occasionally so you can see if there are any scratches across the illustration
A party! 2/2 Watermark: My Little Pony Cutie Mark Illustrated by Rudy Siswanto Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Not Legal Comp
While this does not seem like much, it is an excellent way of getting damage counters on a Pokemon you intend to hit with a power-scaling move
Energy Symbols The energy symbols in the Pokmons typing at the top of the card, in the Pokmons attacks costs, and in the Weakness, Resistance, and Retreat Cost parts of the card are often misaligned, misshapen, incorrectly sized, or missing completely
10 Diffusion Sliver Giving all your slivers what is effectively ward 2 is a huge deal in Commander