Secure the Wastes

Put X 1/1 white Warrior creature tokens onto the battlefield.

Snapcaster Mage

Flash When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

Disdainful Stroke

Counter target spell with converted mana cost 4 or greater.

Baneslayer Angel

Flying, first strike, lifelink, protection from Demons and from Dragons

Logic Knot

Delve (You may exile any number of cards from your graveyard as you cast this spell. It costs {1} less to cast for each card exiled this way.) Counter target spell unless its controller pays {X}.

Spell Snare

Counter target spell with converted mana cost 2.

Engineered Explosives

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Engineered Explosives.

Serum Visions

Draw a card. Scry 2 (Look at the top two cards of your library. Put any number of them on the bottom of your library and the rest on top of it in any order.)

Electrolyze

Electrolyze deals 2 damage divided as you choose among any number of target creatures and/or players. Draw a card.

Cryptic Command

Celestial Purge

Vendilion Clique

Flash Flying When Vendilion Clique enters the battlefield, look at target player's hand. You may choose a nonland card from it. If you do, that player reveals the chosen card, puts it on the bottom of his or her library, then draws a card.

Detention Sphere

When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent. When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.

Supreme Verdict

Supreme Verdict can't be countered. Destroy all creatures.

Runed Halo

As Runed Halo comes into play, name a card. You have protection from the chosen name. (You can't be targeted, dealt damage, or enchanted by anything with that name.)

Lightning Helix

Lightning Helix deals 3 damage to target creature or player and you gain 3 life.

Elspeth, Sun's Champion

+1: Put three 1/1 white Soldier creature tokens onto the battlefield. -3: Destroy all creatures with power 4 or greater. -7: You get an emblem with "Creatures you control get +2/+2 and have flying."

Lightning Bolt

Lightning Bolt does 3 damage to one target.

Path to Exile

Exile target creature. Its controller may search his or her library for a basic land card, put that card onto the battlefield tapped, then shuffle his or her library.

Celestial Colonnade

Celestial Colonnade enters the battlefield tapped. {T}: Add {W} or {U} to your mana pool. {3}{W}{U}: Until end of turn, Celestial Colonnade becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.

Flooded Strand

Sacred Foundry

Scalding Tarn

Steam Vents

Arid Mesa

Dispel

Glacial Fortress

Hallowed Fountain

({T}: Add {W} or {U}.) As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Negate

Counter target noncreature spell.

Field of Ruin

{T}: Add {C}. {2}, {T}, Sacrifice Field of Ruin: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles their library.

Plains

({T}: Add {W}.)

Island

({T}: Add {U}.)

Mountain

({T}: Add {R}.)