but it certainly isn't a card you're going to play on the first turn
Lugia VSTAR (Gold Foil Secret Rare) The gold Secret Rare version of Lugia VSTAR is currently the most expensive in terms of price
The obvious play pattern of swapping the textbox of, lets say a Crab, with Ulamog, the Ceaseless Hunger, but Id rather turn planeswalkers or artifacts into creatures and swap the planeswalkers ability with one of my creatures
Check to make sure you have enough Energy attached to your Active Pokmon to attack
You attach energy cards to critters so they can pull off moves, and you can drag more powerful beasties onto cards to evolve them mid-battle
You can, and probably will run your mundane mana rocks, but artifact decks have access to a host of powerful cost reducers that work exceptionally well with broken combo strategies