Its very strong when you play this on a full board and when you have a way to profit from their sacrifice (read: Tergrid, God of Fright)
Photo match: the scanner reads the card image and tries to identify the exact card
Surging Sparks / Super Electric Breaker Comparing the ungraded Surging Sparks Pikachu ex against the Super Electric Breaker versions in Japanese and Korean, the pattern is almost the same
Does the average sale price line up with the TCGplayer Market Price
In most decks, Timberwatch Elf is going to tap to give a creature anywhere from +3/+3 to +5/+5, making combat completely impossible for your opponent and ensuring they will be signing a match slip very quickly
How to preserve the condition of your cards I plan on releasing a more in-depth guide in the future, but these are the biggest things to do, in order of priority: Handle cards with care