If heads, the attack works normally, but if tails, the attack doesnt happen. Confusion lasts indefinitely unless the affected Pokemon is evolved, retreated, healed, sent back to the hand, or knocked out
This is highly important, there are loads of decks that can only really hope to compete with green ramp if they keep the game relatively low economy
Growing up in his home village, he wanted to be an artist, and he'd say he is one today
However, what truly makes this deck dangerous is Darkrais ability, which deals damage every time it receives energy
There have been plenty of discussions in the past about the dangers of a banned-as-companion list: it's one more list you have to track and adds complexity, among other reasons