Wall of Stone [Alpha Edition] Spirit Knight it gets +X/+0 until end

it gets +X/+0 until end of turn

−3: You may cast a spell from among cards in exile with page counters on them without paying its mana cost

Sacrifice Prismatic Vista: Search your library for a basic land card

Set: Eldritch Moon Prerelease Promos Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {13} This spell costs {1} less to cast for each card type among cards in your graveyard

If this spell was foretold

Wall of Stone [Alpha Edition] Spirit Knight it gets +X/+0 until endSet: Alpha Edition Type: Creature Wall Rarity: Uncommon Cost: {1}{R}{R} Defender (This creature can't attack.) The Earth herself lends her strength to these walls of living stone, which possess the stability of ancient mountains. These mighty bulwarks thwart ground based troops, providing welcome relief for weary warriors who defend the land.