Losing a creature a turn is a hard pill for an opponent to swallow, especially once it costs you no investment past the initial one mana and one card
Since this card's effects depend on how many cards your opponent has, it will probably be relegated to the sideboard in most decks and brought out with cards with the learn mechanic
You will always make mistakes early on, and it takes some time to learn what to look for and how to spot defects
Uncommon, rare will happen 4.3% of the time
Suddenly, your best spider legends arent just uniquetheyre multiplying
So knowing this about Barboach and looking at this Whiscash card, this card is very slow to attack, so you'll want to set up this entire line on the bench, getting four energy cards on it before moving it to the active Pokemon spot