From Under the Floorboards [Shadows over Innistrad Prerelease Promos] Rock Spells your opponents cast that

Spells your opponents cast that target Icefall Regent cost {2} more to cast

the equipped monster's original ATK becomes 2400

Eldrazi Type: Artifact Rarity: Rare Cost: {4} Landfall — Whenever a land enters the battlefield under your control

Set: Khans of Tarkir Type: Instant Rarity: Rare Cost: {2}{W}{B} Exile target nonland permanent

Set: Commander 2014 Type: Sorcery Rarity: Rare Cost: {4}{B}{B}{B} Destroy all creatures

From Under the Floorboards [Shadows over Innistrad Prerelease Promos] Rock Spells your opponents cast thatSet: Shadows over Innistrad Prerelease Promos Type: Sorcery Rarity: Rare Cost: {3}{B}{B} Madness {X}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) Create three tapped 2 2 black Zombie creature tokens and you gain 3 life. If this spell's madness cost was paid, instead create X of those tokens and you gain X life.