Use an app like DelverLens or look up the price of the cards at a store: Familiarize yourself with how to recognize an older / rarer card here: But realistically if you just show up to a store with a huge box of unsorted cards and tell them to make you an offer, theyll give you a quick offer based on what they can see
He remains one of the best Gods out there for multicolored purposes
The enchantment creature can be a finisher in a Simic (green and blue) deck, or just provide a pair of quick and advantageous effects when Channeled
Furthermore, seeing as the legendary birds have been featured heavily in Pokemons branding over the years, as well as in Pokemon: The Movie 2000, Zapdos commanding an impressive sum on the secondary market makes perfect sense
The answer may surprise you given how prevalent Normal Monsters were in the early days of the game, but there's only 1 Normal WIND Monster in the entire game that requires 2 Tributes, that being Leonardo's Silver Skyship which was given out at the 2014 World Championship, is exceptionally rare to find, and completely banned from any competitively play