Dreamroot Cascade

This land enters tapped unless you control two or more other lands.
{T}: Add {G} or {U}.

Decorum Dissertation

Target player draws two cards and loses 2 life.
Paradigm (Then exile this spell. After you first resolve a spell with this name, you may cast a copy of it from exile without paying its mana cost at the beginning of each of your first main phases.)

Splatter Technique

Choose one —
• Draw four cards.
• Splatter Technique deals 4 damage to each creature and planeswalker.

Colossus of the Blood Age

When this creature enters, it deals 3 damage to each opponent and you gain 3 life.
When this creature dies, discard any number of cards, then draw that many cards plus one.

Comforting Counsel

Whenever you gain life, put a growth counter on this enchantment.
As long as there are five or more growth counters on this enchantment, creatures you control get +3/+3.

Ral Zarek, Guest Lecturer

+1: Surveil 2.
−1: Any number of target players each discard a card.
−2: Return target creature card with mana value 3 or less from your graveyard to the battlefield.
−7: Flip five coins. Target opponent skips their next X turns, where X is the number of coins that came up heads.

Regrowth

Return target card from your graveyard to your hand.

Emeritus of Abundance

Vigilance
This creature enters prepared.
Whenever this creature attacks, if you control eight or more lands, this creature becomes prepared.

Emeritus of Abundance // Regrowth

Ancestral Recall

Emeritus of Ideation

Flying, ward {2}
This creature enters prepared.
Whenever this creature attacks, you may exile eight cards from your graveyard. If you do, this creature becomes prepared.

Emeritus of Ideation // Ancestral Recall

Wisdom of Ages

Return all instant and sorcery cards from your graveyard to your hand. You have no maximum hand size for the rest of the game.
Exile Wisdom of Ages.

Arnyn, Deathbloom Botanist

Deathtouch
Whenever a creature you control with power or toughness 1 or less dies, target opponent loses 2 life and you gain 2 life.

Improvisation Capstone

Exile cards from the top of your library until you exile cards with total mana value 4 or greater. You may cast any number of spells from among them without paying their mana costs.
Paradigm (Then exile this spell. After you first resolve a spell with this name, you may cast a copy of it from exile without paying its mana cost at the beginning of each of your first main phases.)

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Emeritus of Conflict

First strike
Whenever you cast your third spell each turn, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Emeritus of Conflict // Lightning Bolt

Suspend Aggression

Exile target nonland permanent and the top card of your library. For each of those cards, its owner may play it until the end of their next turn.

Mathemagics

Target player draws 2ˣ cards. (2⁰ = 1, 2¹ = 2, 2² = 4, 2³ = 8, 2⁴ = 16, 2⁵ = 32, and so on.)

Vicious Rivalry

As an additional cost to cast this spell, pay X life.
Destroy all artifacts and creatures with mana value X or less.

Zaffai and the Tempests

Once during each of your turns, you may cast an instant or sorcery spell from your hand without paying its mana cost.

Professor Dellian Fel

+2: You gain 3 life.
0: You draw a card and lose 1 life.
−3: Destroy target creature.
−6: You get an emblem with "Whenever you gain life, target opponent loses that much life."

Sundown Pass

This land enters tapped unless you control two or more other lands.
{T}: Add {R} or {W}.