Massive Might

Target creature gets +2/+2 and gains trample until end of turn.

Heir of the Ancient Fang

This creature enters with a +1/+1 counter on it if you control a modified creature. (Equipment, Auras you control, and counters are modifications.)

Tajuru Beastmaster

Rally — Whenever this creature or another Ally you control enters, creatures you control get +1/+1 until end of turn.

Red Herring

Haste
This creature attacks each combat if able.
{2}, Sacrifice this creature: Draw a card.

Khenra Scrapper

Menace
You may exert this creature as it attacks. When you do, it gets +2/+0 until end of turn. (An exerted creature won't untap during your next untap step.)

Verdant Outrider

{1}{G}: This creature can't be blocked by creatures with power 2 or less this turn.

Gravel-Hide Goblin

{3}{G}: This creature gets +2/+2 until end of turn.

Horizon Seeker

Boast — {1}{G}: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. (Activate only if this creature attacked this turn and only once each turn.)

Ornamental Courage

Untap target creature. It gets +1/+3 until end of turn.

Brazen Buccaneers

Haste
When this creature enters, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

Sweatworks Brawler

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Menace

Frontline Rebel

This creature attacks each combat if able.

Snarespinner

Reach
Whenever this creature blocks a creature with flying, this creature gets +2/+0 until end of turn.

Run Amok

Target attacking creature gets +3/+3 and gains trample until end of turn.

Haggle

You may discard a card. If you do, draw a card. (Then exile this card. You may cast the creature later from exile.)

Merchant of the Vale

Merchant of the Vale // Haggle

Swashbuckling

Enchant creature
Enchanted creature gets +2/+2 and has haste.

Embereth Paladin

Haste
Adamant — If at least three red mana was spent to cast this spell, this creature enters with a +1/+1 counter on it.

Cartouche of Zeal

Enchant creature you control
When this Aura enters, target creature can't block this turn.
Enchanted creature gets +1/+1 and has haste. (It can attack and {T} no matter when it came under your control.)

Mage-Ring Bully

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
This creature attacks each combat if able.

Atarka Beastbreaker

Formidable — {4}{G}: This creature gets +4/+4 until end of turn. Activate only if creatures you control have total power 8 or greater.

Forest

Valor Singer

Combat Inspiration — At the beginning of combat on your turn, target creature you control gets +1/+0 until end of turn.

Trailblazing Historian

Haste
{T}: Another target creature gains haste until end of turn.

Ember Beast

This creature can't attack or block alone.

Flowstone Infusion

Target creature gets +2/-2 until end of turn.

Screamreach Brawler

Dash {1}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Ogre Sentry

Frantic Firebolt

Frantic Firebolt deals X damage to target creature, where X is 2 plus the number of cards in your graveyard that are instant cards, sorcery cards, and/or have an Adventure.

Rhonas's Stalwart

You may exert this creature as it attacks. When you do, it gets +1/+1 until end of turn and can't be blocked by creatures with power 2 or less this turn. (An exerted creature won't untap during your next untap step.)

Seton's Desire

Enchant creature
Enchanted creature gets +2/+2.
Threshold — As long as there are seven or more cards in your graveyard, all creatures able to block enchanted creature do so.

Fanatical Strength

Target creature gets +3/+3 and gains trample until end of turn.

Kruin Striker

Whenever another creature you control enters, this creature gets +1/+0 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Plasma Jockey

Whenever this creature attacks, target creature an opponent controls can't block this turn.
Blitz {2}{R} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

Hardy Veteran

During your turn, this creature gets +0/+2.

Greenwood Sentinel

Vigilance (Attacking doesn't cause this creature to tap.)

Price of Loyalty

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. If mana from a Treasure was spent to cast this spell, that creature gets +2/+0 until end of turn.

Swaggering Corsair

Raid — This creature enters with a +1/+1 counter on it if you attacked this turn.

Mountain

Cautious Survivor

Survival — At the beginning of your second main phase, if this creature is tapped, you gain 2 life.

Radha, Coalition Warlord

Domain — Whenever Radha becomes tapped, another target creature you control gets +X/+X until end of turn, where X is the number of basic land types among lands you control.

Garenbrig Squire

Whenever you cast a creature spell that has an Adventure, this creature gets +1/+1 until end of turn. (It doesn't need to have gone on the adventure first.)

Reckless Cohort

This creature attacks each combat if able unless you control another Ally.

Jadecraft Artisan

When this creature enters, target creature gets +2/+2 until end of turn.

Pursue Glory

Attacking creatures get +2/+0 until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Shield's Might

Target creature gets +2/+2 until end of turn. (Then exile this card. You may cast the creature later from exile.)

Garenbrig Carver

Garenbrig Carver // Shield's Might

Armory Veteran

As long as this creature is equipped, it has menace. (It can't be blocked except by two or more creatures.)

Daybreak Combatants

Haste (This creature can attack and {T} as soon as it comes under your control.)
When this creature enters, target creature gets +2/+0 until end of turn.

Valakut Invoker

{8}: This creature deals 3 damage to any target.

Ground Assault

Ground Assault deals damage to target creature equal to the number of lands you control.

Band Together

Up to two target creatures you control each deal damage equal to their power to another target creature.

Goblin Medics

Whenever this creature becomes tapped, it deals 1 damage to any target.

Tomakul Scrapsmith

When this creature enters, mill three cards. You may put an artifact card from among the cards milled this way into your hand. If you don't, put a +1/+1 counter on this creature. (To mill a card, put the top card of your library into your graveyard.)

Most Valuable Slayer

Whenever you attack, target attacking creature gets +1/+0 and gains first strike until end of turn.

Fa'adiyah Seer

{T}: Draw a card and reveal it. If it isn't a land card, discard it.

Fearless Halberdier

Stoic Builder

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

Breakneck Berserker

Skewer Slinger

Reach
Whenever this creature blocks or becomes blocked by a creature, this creature deals 1 damage to that creature.

Bramble Armor

When this Equipment enters, attach it to target creature you control.
Equipped creature gets +2/+1.
Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

Predation Steward

This creature enters with two oil counters on it.
{2}{G}, {T}, Remove an oil counter from this creature: Target creature gets +2/+2 until end of turn. Activate only as a sorcery.

Hardened Berserker

Whenever this creature attacks, the next spell you cast this turn costs {1} less to cast.

Tuskeri Firewalker

Boast — {1}: Exile the top card of your library. You may play that card this turn. (Activate only if this creature attacked this turn and only once each turn.)

Oran-Rief Invoker

{8}: This creature gets +5/+5 and gains trample until end of turn.

Goblin Picker

Bomber Corps

Battalion — Whenever this creature and at least two other creatures attack, this creature deals 1 damage to any target.