Drover of the Mighty

Drover of the Mighty gets +2/+2 as long as you control a Dinosaur.
: Add one mana of any color.

Starfield Mystic

Enchantment spells you cast cost less to cast.
Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Starfield Mystic.

Ingenious Leonin

: Put a +1/+1 counter on another target attacking creature you control. If that creature is a Cat, it gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Murasa Ranger

Landfall — Whenever a land you control enters, you may pay . If you do, put two +1/+1 counters on Murasa Ranger.

Herald of War

Flying
Whenever Herald of War attacks, put a +1/+1 counter on it.
Angel spells and Human spells you cast cost less to cast for each +1/+1 counter on Herald of War.

Tireless Tracker

Landfall — Whenever a land you control enters, investigate. (Create a Clue token. It’s an artifact with “, Sacrifice this token: Draw a card.”)
Whenever you sacrifice a Clue, put a +1/+1 counter on this creature.

Ingenious Leonin

: Put a +1/+1 counter on another target attacking creature you control. If that creature is a Cat, it gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Starfield Mystic

Enchantment spells you cast cost less to cast.
Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Starfield Mystic.

Cataclysm

Each player chooses from among the permanents they control an artifact, a creature, an enchantment, and a land, then sacrifices the rest.

Dack Fayden

+1: Target player draws two cards, then discards two cards.
−2: Gain control of target artifact.
−6: You get an emblem with “Whenever you cast a spell that targets one or more permanents, gain control of those permanents.”

Merfolk Seastalkers

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Tap target creature without flying.

Worst Fears

You control target player during that player’s next turn. Exile Worst Fears. (You see all cards that player could see and make all decisions for the player.)

Prosperous Innkeeper

When Prosperous Innkeeper enters, create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)
Whenever another creature you control enters, you gain 1 life.

Epic Downfall

Exile target creature with mana value 3 or greater.

Anax, Hardened in the Forge

Anax’s power is equal to your devotion to red. (Each in the mana costs of permanents you control counts toward your devotion to red.)
Whenever Anax or another nontoken creature you control dies, create a 1/1 red Satyr creature token with “This creature can’t block.” If the creature had power 4 or greater, create two of those tokens instead.

Skittering Invasion

Create five 0/1 colorless Eldrazi Spawn creature tokens. They have “Sacrifice this creature: Add .”

Izoni, Thousand-Eyed

Undergrowth — When Izoni, Thousand-Eyed enters, create a 1/1 black and green Insect creature token for each creature card in your graveyard.
, Sacrifice another creature: You gain 1 life and draw a card.

Chandra’s Ignition

Target creature you control deals damage equal to its power to each other creature and each opponent.