In a poke'mon deck what are some valuable cards?

Question

i have tons of cards and i just wanna know if any of them are worth anyting

Answer 1

I am not much of an expert but here are the following conditions. If they are mint condition (no bents in the corners) and mostly if they are holographic EX-Pokemon. Like here is a great example. I have an Aggron-EX. If mine was still in good condition the most I would have gotten was about $40.

I have more but that is a good pointer.