Terror of the Peaks

Creature — Dragon (5/4)

Flying
Spells your opponents cast that target Terror of the Peaks cost an additional 3 life to cast.
Whenever another creature enters the battlefield under your control, Terror of the Peaks deals damage equal to that creature's power to any target.

Trial of Zeal

Enchantment

When Trial of Zeal enters the battlefield, it deals 3 damage to any target.
When a Cartouche enters the battlefield under your control, return Trial of Zeal to its owner's hand.

Unpredictable Cyclone

Enchantment

If a cycling ability of another nonland card would cause you to draw a card, instead exile cards from the top of your library until you exile a card that shares a card type with the cycled card. You may cast that card without paying its mana cost. Then put the exiled cards that weren't cast this way on the bottom of your library in a random order.
Cycling (, Discard this card: Draw a card.)

Urabrask // The Great Work

Legendary Creature — Phyrexian Praetor // Enchantment — Saga (4/4)

First strike
Whenever you cast an instant or sorcery spell, Urabrask deals 1 damage to target opponent. Add .
: Exile Urabrask, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if you've cast three or more instant and/or sorcery spells this turn.

The Great Work

(As this Saga enters and after your draw step, add a lore counter.)
I — The Great Work deals 3 damage to target opponent and each creature they control.
II — Create three Treasure tokens.
III — Until end of turn, you may cast instant and sorcery spells from any graveyard. If a spell cast this way would be put into a graveyard, exile it instead. Exile The Great Work, then return it to the battlefield (front face up)

Vigilante Justice

Enchantment

Whenever a Human enters the battlefield under your control, Vigilante Justice deals 1 damage to any target.

Anthem of Rakdos

Enchantment

Whenever a creature you control attacks, it gets +2/+0 until end of turn and Anthem of Rakdos deals 1 damage to you.
Hellbent — As long as you have no cards in hand, if a source you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Battle of Frost and Fire

Enchantment — Saga

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Battle of Frost and Fire deals 4 damage to each non-Giant creature and each planeswalker.
II — Scry 3.
III — Whenever you cast a spell with mana value 5 or greater this turn, draw two cards, then discard a card.

Captive Audience

Enchantment

Captive Audience enters the battlefield under the control of an opponent of your choice.
At the beginning of your upkeep, choose one that hasn't been chosen —
• Your life total becomes 4.
• Discard your hand.
• Each opponent creates five 2/2 black Zombie creature tokens.

Curse of Obsession

Enchantment — Aura Curse

Enchant player
At the beginning of enchanted player's draw step, that player draws two additional cards.
At the beginning of enchanted player's end step, that player discards their hand.

Dong Zhou, the Tyrant

Legendary Creature — Human Soldier (3/3)

When Dong Zhou, the Tyrant enters the battlefield, target creature an opponent controls deals damage equal to its power to that player.

Electryte

Creature — Trilobite Beast (3/3)

Whenever Electryte deals combat damage to defending player, it deals damage equal to its power to each blocking creature.

Fiery Bombardment

Enchantment

Chroma — , Sacrifice a creature: Fiery Bombardment deals damage to any target equal to the number of red mana symbols in the sacrificed creature's mana cost.

Hateflayer

Creature — Elemental (5/5)

Wither (This deals damage to creatures in the form of -1/-1 counters.)
, : Hateflayer deals damage equal to its power to any target. ( is the untap symbol.)

Honden of Infinite Rage

Legendary Enchantment — Shrine

At the beginning of your upkeep, Honden of Infinite Rage deals damage to any target equal to the number of Shrines you control.

Nahiri's Resolve

Enchantment

Creatures you control get +1/+0 and have haste.
At the beginning of your end step, exile any number of nontoken artifacts and/or creatures you control. Return those cards to the battlefield under their owner's control at the beginning of your next upkeep.

Noise Marine

Creature — Astartes Warrior (3/2)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
Sonic Blaster — When Noise Marine enters the battlefield, it deals damage equal to the number of spells you've cast this turn to any target.

Nyxborn Brute

Enchantment Creature — Cyclops (7/3)

Ravenous Tyrannosaurus

Creature — Dinosaur (6/6)

Devour 3 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with three times that many +1/+1 counters on it.)
Whenever Ravenous Tyrannosaurus attacks, it deals damage equal to its power to up to one other target creature. Excess damage is dealt to that creature's controller instead.

Sarkhan's Unsealing

Enchantment

Whenever you cast a creature spell with power 4, 5, or 6, Sarkhan's Unsealing deals 4 damage to any target.
Whenever you cast a creature spell with power 7 or greater, Sarkhan's Unsealing deals 4 damage to each opponent and each creature and planeswalker they control.

Spawn of Thraxes

Creature — Dragon (5/5)

Flying
When Spawn of Thraxes enters the battlefield, it deals damage to any target equal to the number of Mountains you control.