Like most Pokmon cards, the value of Latias-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 (Plasma Freeze)
Charge Into Battle with Iron Leaves ex
It doesnt fall off on its own, but fake holograms could be scraped off with a tool, whereas holograms on real cards are flush with the rest of the cardboard
Another ten thousand years of yellow
All recovery effects change to damage, so some cards quickly turn into brutal burn cards
Ruby cards focus on offensive strategies, like using the Rush (able to challenge the turn the character is played) and Evasive (only allowing other Evasive ability characters to attack the character) abilities