mtg card holder Caddy The Gathering Trading Card Carrying Case ZLCA MTG Commander Deck Box

Because the Valesk's toughness is only 2, and the Mauler has trample, which means 2 of its 4 damage gets dealt to the Valesk, and 2 gets dealt to the opponent

White Auracite Mana Value: 2WW Rarity: Common Type: Artifact Card Text: When this artifact enters, exile target nonland permanent an opponent controls until this artifact leaves the battlefield

And as a fun extra bonus, in addition to the Buy-a-Box card, if you buy a box, you'll also receive two Jumpstart boosters as well

it can be a way to get a second Counterspell to hold off an incoming threat or even be an aggressive way to get an additional 3 damage from a Lightning Bolt