Like most Pokmon cards, the value of Wo-Chien ex depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Paldea Evolved)
It might result in zero cards or, if you're lucky, it could be ten
In battle, everything is very similar to how youd play the Pokmon TCG in real life
Heres every MTG Commander Legends: Battle for Baldurs Gate card worth money on the secondary market
There is only one way to guarantee if a booster box is shadowless, and thats carefully checking the booster packs inside without jeopardizing the seal
I encourage you to try it out, but if it breaks you may need to find another solution