At just two generic and one white mana, you get to look at your opponent's hand, noting what possible plays they could make during the next few turns and letting you plan accordingly
The least practical combination is Elemental Hero Ice Edge, which deletes 2 magic and trap cards
Which era has the most Trainer Full Arts
Being able to fetch a basic land at instant speed later in the game, triggering Revolt or sacrifice synergies, makes this a glue card that holds artifact decks together
Regardless, if you ever wanted a retro bordered Cloudstone Curio, it now exists
For the simple cost of two Colorless energies, which could be instantly fulfilled in a single turn using a Double Colorless Energy, Seismitoad dealt a modest 30 damage, also applying a status condition that makes it so the opponent can not play any Item cards from their hand during their next turn