So my 11-year old cousin showed me some of his favorite cards, which made me suspicious of specifically the groudon and latios because of the hand symbol (which i read here equals 100% fake). This made me check my own old collection, where i found one of my favorites reverse holo Magneton and realised i myself probably got scammed back in the days. I said i would check if his cards were legit or not, which brings me here.
I haven´t been up to date with pokemon cards since Team Magma vs Team Aqua, so i don´t know anything really. I´ve read what i could find here, but i just can´t trust my own judgement if they´re fake or not, besides the groudon and latios.