Checking The Text To check if your card or the one you are going to buy is a fake, you should first pay attention to the text
Giant Trunade is played with Heavy Storm to keep opposing spells and traps out of the equation, Nobleman of Crossout and/or Mind Control handle face-downs, Lightning Vortex helps against goat tokens and potentially threatening creatures, and Snatch Steal and Brain Control are sometimes used to add to your own board using opponents monsters
For starters, having to discard an energy from hand could work with decks like Ceruledge ex that benefit from having energy in the discard
You can buy Pokmon cards, Yu-Gi-Oh!, Duel Masters, Wei Schwarz, and rare out-of-print trading cards
A lot of the new cards in the precon are also floating around the $5 to $15 area, but that can be subject to change after release