Oath of Scholars

At the beginning of each player's upkeep, that player chooses target player who has more cards in hand than they do and is their opponent. The first player may discard their hand and draw three cards.

Robe of Mirrors

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature has shroud. (It can't be the target of spells or abilities.)

Rootwater Mystic

{1}{U}: Look at the top card of target player's library.

School of Piranha

At the beginning of your upkeep, sacrifice this creature unless you pay {1}{U}.

Scrivener

When this creature enters, you may return target instant card from your graveyard to your hand.

Thalakos Drifters

Discard a card: This creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

Thalakos Scout

Shadow (This creature can block or be blocked by only creatures with shadow.)
Discard a card: Return this creature to its owner's hand.

Theft of Dreams

Draw a card for each tapped creature target opponent controls.

Convalescence

At the beginning of your upkeep, if you have 10 or less life, you gain 1 life.

Treasure Trove

Wayward Soul

Flying
{U}: Put this creature on top of its owner's library.

Whiptongue Frog

{U}: This creature gains flying until end of turn.

Carnophage

At the beginning of your upkeep, tap this creature unless you pay 1 life.

Cat Burglar

{2}{B}, {T}: Target player discards a card. Activate only as a sorcery.

Culling the Weak

As an additional cost to cast this spell, sacrifice a creature.
Add {B}{B}{B}{B}.

Cursed Flesh

Enchant creature
Enchanted creature gets -1/-1 and has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Exodus