Gladion allows you to deal plus 80 damage as long as you are using a non-rule box Pokmon as an attacker AND (this is the part I missed) as long as there are no cards in hand
The upsides include being able to loot reliably on turn two if in opening hand and that getting to level three is quite easy in the mid and late game turning this guy quickly into a game winner
The cards simplicity, rarity, and connection to Charizard (arguably one of the most iconic Pokmon in the franchise) make it an essential piece of hobby history
If Pokemon makes Evolving Skies booster boxes more accessible, the price of these cards could come down to make them more obtainable
Other popular pillows include Ghostly Prison, Propaganda, and their ilk, making it difficult for those go wide decks to attack
As such this is usually just a bad Repulse or bad Capsize