It's an X-cost spell where you can plug in mana to give a creature -X/-X stats, perhaps killing it instantly or else helping you to win a combat
In the past, Tezzeret has traditionally been blue or blue/black, so it is interesting to see the character now represented as colorless
The outer packaging may have minor storage wear, small marks, or light creases
The proper time to use it is early game for disruption, or when your opponent has somehow taken 3 or 4 Prizes and you need to get only a few more Pokmon in the Lost Zone to win the game, use it and hope he gets something good for you
The most relevant cards: Trainers The set also comes with a lot of items and supporters that are a reflection of places and/or characters from Hisui
The compromise is a system in which players grind up their duplicates to earn currency, which allows for trades to occur