Players have taken to social media to share their frustration at the trading feature, criticizing it for having too many requirements and too many restrictions
Additionally, you can test your deck in solo mode, though playing against a computer may not offer the same feedback as a battle against another trainer
Often neither of these options gets it done and you do some blend of killing a couple of relevant things of theirs and some of your own seemingly less relevant things
Larvesta from the Darkness Ablaze expansion is a decent representation of this, as its Singe attack guarantees a Burn on the foe and only requires one Fire-type energy to play, making it an optimal card to use at the beginning of a battle
GW Valakut This deck is one you might remember from the Field of the Dead days
Summoned by Team Sun's Yoshizo in a duel with Jack Atlas , it remained on the field due to the effect of Holding Hands , but was destroyed along with Zarigan due to the effect of Pincer Attack used by Taro