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.)

Timely Reinforcements

If you have less life than an opponent, you gain 6 life. If you control fewer creatures than an opponent, put three 1/1 white Soldier creature tokens onto the battlefield.

Sword of Feast and Famine

Equipped creature gets +2/+2 and has protection from black and from green. Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control. Equip {2}

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.

Cryptic Command

Sword of Fire and Ice

Equipped creature gets +2/+2 and has protection from red and from blue. Whenever equipped creature deals combat damage to a player, Sword of Fire and Ice deals 2 damage to target creature or player and you draw a card.

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.

Batterskull

Living weapon (When this Equipment enters the battlefield, put a 0/0 black Germ creature token onto the battlefield, then attach this to it.) Equipped creature gets +4/+4 and has vigilance and lifelink. {3}: Return Batterskull to its owner's hand. Equip {5}

Gideon Jura

+2: During target opponent's next turn, creatures that player controls attack Gideon Jura if able. -2: Destroy target tapped creature. 0: Until end of turn, Gideon Jura becomes a 6/6 Human Soldier creature that's still a planeswalker. Prevent all damage that would be dealt to him this turn.

Mana Leak

Counter target spell unless its caster pays an additional {3}.

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.

Jace, the Mind Sculptor

+2: Look at the top card of target player's library. You may put that card on the bottom of that player's library. 0: Draw three cards, then put two cards from your hand on top of your library in any order. -1: Return target creature to its owner's hand. -12: Exile all cards from target player's library, then that player shuffles his or her hand into his or her library.

Stoneforge Mystic

When Stoneforge Mystic enters the battlefield, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle your library. {1}{W}, {T}: You may put an Equipment card from your hand onto the battlefield.

Flooded Strand

Polluted Delta

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.

Teferi, Time Raveler

Each opponent can cast spells only any time they could cast a sorcery. +1: Until your next turn, you may cast sorcery spells as though they had flash. −3: Return up to one target artifact, creature, or enchantment to its owner's hand. Draw a card.

Opt

Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) Draw a card.

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}.)