Stoneforge Mystic [Judge Gift Cards 2016] XY67 Leviathan can't attack unless you

Leviathan can't attack unless you sacrifice two Islands

and Glaceon VSTAR appearing as foil promo cards—and you get an oversize version of Glaceon VSTAR for display

Set: Beatdown Type: Instant Rarity: Common Cost: {B} Add {B}{B}{B}

Destroy that monster

What about the art of destruction

Stoneforge Mystic [Judge Gift Cards 2016] XY67 Leviathan can't attack unless youSet: Judge Gift Cards 2016 Type: Creature Kor Artificer Rarity: Rare Cost: {1}{W} When Stoneforge Mystic enters the battlefield, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle. {1}{W}, {T}: You may put an Equipment card from your hand onto the battlefield.