Pokémon Trading Card Game Pocket 's hotly-anticipated Trade feature is finally live in the mobile app. Those who have been waiting to swap cards with their pals can now do so, but there's a catch: it's a real headache.

The next major Pokémon Trading Card Game Pocket update, dubbed Space-Time Smackdown, is scheduled for Jan. 29, but several cards are already starting to appear online, presumably through datamining. Let’s break down some highlights.

Trade Tokens are one of two types of currency needed to initiate a trade in Pokémon TCG Pocket, with the other being Trade Stamina. But while stamina increases over time, you need to earn Trade Tokens manually—and a hefty amount to trade some of the rarest cards.

Pokémon TCG Pocket issues a warning players who break their ToS will be penalized as the new expansion and trading feature release this week.

Pokémon Trading Card Game Pocket has received its long awaited trading update today and, despite players slamming the mechanic upon developer Creatures Inc. revealing how it would work last week, it's somehow launched to an even worse reception.