Every Pokemon TCG expansion has a unique symbol
Mime #43Rare $0.46 Metapod #2Uncommon $0.11 Koga's Trap #59Uncommon $0.06 Brock's Training #55Holo Rare $0.34 Kangaskhan #47Rare $0.24 Electrode #22Rare $0.09 Chansey #3Holo Rare $62.91 Chansey #69Common $6.56 Chansey #3Holo Rare $92.07 Chansey #3Holo Rare $20.93 Chansey #31Uncommon $25.85 Chansey #72Uncommon $8.55 Chansey #19Rare $6.38 Chansey #20Rare $4.48 Chansey #76Common $1.35 Chansey #69Common $2.54 Pokemon 2-Player Starter Set (Revised Base Set Reprint Run) $249.50 Base Set Theme Deck - "Blackout" (Revised Base Set Reprint Run) Base Set Theme Deck - "Zap!" (Revised Base Set Reprint Run) $499.95 Base Set Theme Deck - "Brushfire" (Revised Base Set Reprint Run) Base Set Theme Deck - "Overgrowth" (Revised Base Set Reprint Run) $685.00 Base Set Booster Pack [Revised Unlimited Edition] $786.87 Base Set Booster Box [Revised Unlimited Edition] Base Set 2 - 2-Player CD-ROM Starter Set $176.60

Normal Green Search Red, Normal Red Search Yellow, Normal Yellow Search Green, Shock Master Ultimate Offering is a Continuous Trap Card that, by paying 500 LP, lets you Normal Summon an additional time
We don't know how Japan will get most of the other promo cards released in English, like Light Toxtricity and Greninja Star.
EX cards are often Basic cards, whereas ex cards have to be evolved in order for them to be played
You can run a casual Codie deck, or a competitive one looking to chain together a very specific set of spells