Monastery Mentor

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Whenever you cast a noncreature spell, put a 1/1 white Monk creature token with prowess 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.)

Geist of Saint Traft

Hexproof (This creature can't be the target of spells or abilities your opponents control.) Whenever Geist of Saint Traft attacks, put a 4/4 white Angel creature token with flying onto the battlefield tapped and attacking. Exile that token at end of combat.

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.

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.

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.)

Cryptic Command

Remand

Counter target spell. If you do, return that spell card to its owner's hand. Draw 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.

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.

Spreading Seas

Enchant land When Spreading Seas enters the battlefield, draw a card. Enchanted land is an Island.

Flooded Strand

Glacial Fortress

Settle the Wreckage

2WW

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.

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}.)