Standard commons and uncommons usually pay less than reverse holos, holo rares, and premium modern cards like V, GX, EX, VMAX, and VSTAR
Today, most counterfeit cards are designed to pass various tests like the bend test and the light test, and some look almost exactly like the real thing, even upon close inspection (unless you're going really deep and using a jeweler's loupe, which is a good way to weed out fakes but too much work for the average player)
Even if you have all of the cards you need, I recommend picking up 400 codes per set to redeem in the game to have credits ready for your next deck masterpiece
Join Rosemary Kelley for a look at how to increase its effectiveness, using the Pokmon TCG: Inteleon VMAX League Battle Deck as an example
Ive played at least once every day for the past week, and I dont see that changing
The Urza's Saga posters measure about 12.20" x 16.53" (30.98 x 41.98 cm)