Ajani, Caller of the Pride

+1: Put a +1/+1 counter on up to one target creature.
−3: Target creature gains flying and double strike until end of turn.
−8: Create X 2/2 white Cat creature tokens, where X is your life total.

Liliana of the Dark Realms

+1: Search your library for a Swamp card, reveal it, and put it into your hand. Then shuffle your library.
−3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.
−6: You get an emblem with “Swamps you control have ‘: Add .'”

Stonehewer Giant

Vigilance
, : Search your library for an Equipment card and put it onto the battlefield. Attach it to a creature you control. Then shuffle your library.

Showstopper

Until end of turn, creatures you control gain “When this creature dies, it deals 2 damage to target creature an opponent controls.”

Bloodrage Vampire

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters the battlefield with a +1/+1 counter on it.)

Syndic of Tithes

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)

Sapphire Drake

Flying
Each creature you control with a +1/+1 counter on it has flying.

Nav Squad Commandos

Battalion — Whenever Nav Squad Commandos and at least two other creatures attack, Nav Squad Commandos gets +1/+1 until end of turn. Untap it.

Crowned Ceratok

Trample
Each creature you control with a +1/+1 counter on it has trample.

Slaughterhorn

Bloodrush — , Discard Slaughterhorn: Target attacking creature gets +3/+2 until end of turn.

Treasure Hunt

Reveal cards from the top of your library until you reveal a nonland card, then put all cards revealed this way into your hand.

Shriekmaw

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)
When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.
Evoke (You may cast this spell for its evoke cost. If you do, it’s sacrificed when it enters the battlefield.)

Goblin Guide

Haste
Whenever Goblin Guide attacks, defending player reveals the top card of their library. If it’s a land card, that player puts it into their hand.

Guttersnipe

Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.

Hellhole Flailer

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can’t block as long as it has a +1/+1 counter on it.)
, Sacrifice Hellhole Flailer: Hellhole Flailer deals damage equal to its power to target player or planeswalker.

Slaughter Games

This spell can’t be countered.
Choose a nonland card name. Search target opponent’s graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles their library.

Precinct Captain

First strike
Whenever Precinct Captain deals combat damage to a player, create a 1/1 white Soldier creature token.

Hydrosurge

Target creature gets -5/-0 until end of turn.

Silent-Blade Oni

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Silent-Blade Oni deals combat damage to a player, look at that player’s hand. You may cast a spell from among those cards without paying its mana cost.