If not dealt with it tends to be enough to beat agro decks but is obviously a kill on sight card for things like red deck wins
In fact whenever things do tilt a bit too far towards a certain deck in particular - looking at you, Mewtwo, Celebi, Darkrai and, as anyone familiar with my personal TCG toils will know I'm about to say: a certain Team Galactic's Cyrus - much of the game's most enjoyable moments have come from trying out new ways to topple it
In terms of actual potency disregarding the basic land types the shock lands are probably just behind pain lands in power, in cube at least where you don't get those draws of all pain lands and end up killing yourself which can happen in constructed when running 4 copies of each pain land
The decks range in price for $20 to upwards of $300 and have all their decklists posted completely
On top of that, it also has the bonus feature of letting you configure the maximum price of the cards that you can pack
Brown Note: Her boss was Driven to Suicide by reading The King in Yellow , which motivated her to join the team in order to learn more