Ashenmoor Gouger can't block.

Other black creatures you control get +1/+1.

Other red creatures you control get +1/+1.

Whenever Ashenmoor Liege becomes the target of a spell or ability an opponent controls, that player loses 4 life.

({B/R} can be paid with either {B} or {R}.)

Flying

When Avatar of Discord enters the battlefield, sacrifice it unless you discard two cards.

Other red creatures you control get +1/+1.

Other white creatures you control get +1/+1.

Whenever you cast a red spell, Balefire Liege deals 3 damage to target player or planeswalker.

Whenever you cast a white spell, you gain 3 life.

First strike

Belligerent Hatchling enters the battlefield with four -1/-1 counters on it.

Whenever you cast a red spell, remove a -1/-1 counter from Belligerent Hatchling.

Whenever you cast a white spell, remove a -1/-1 counter from Belligerent Hatchling.

Flying

Bloodied Ghost enters the battlefield with a -1/-1 counter on it.

{U/R}{U/R}, {T}, Tap two untapped red creatures you control: Crackleburr deals 3 damage to any target.

{U/R}{U/R}, {Q}, Untap two tapped blue creatures you control: Return target creature to its owner's hand. ({Q} is the untap symbol.)

When Cultbrand Cinder enters the battlefield, put a -1/-1 counter on target creature.

Trample

Deity of Scars enters the battlefield with two -1/-1 counters on it.

{B/G}, Remove a -1/-1 counter from Deity of Scars: Regenerate Deity of Scars.

When you cast this spell, return all cards named Demigod of Revenge from your graveyard to the battlefield.

Flying, haste

Trample

Whenever Deus of Calamity deals 6 or more damage to an opponent, destroy target land that player controls.

Flying, lifelink

Divinity of Pride gets +4/+4 as long as you have 25 or more life.

Flying

At the beginning of your upkeep, you may gain control of target permanent until end of turn. If you do, untap it and it gains haste until end of turn.

Trample

At the beginning of your upkeep, sacrifice a creature. You gain life equal to that creature's toughness.

Whenever you cast a black spell, Emberstrike Duo gets +1/+1 until end of turn.

Whenever you cast a red spell, Emberstrike Duo gains first strike until end of turn.

Flying

Evershrike gets +2/+2 for each Aura attached to it.

{X}{W/B}{W/B}: Return Evershrike from your graveyard to the battlefield. You may put an Aura card with mana value X or less from your hand onto the battlefield attached to it. If you don't, exile Evershrike.

Sacrifice Fulminator Mage: Destroy target nonbasic land.

Ghastlord of Fugue can't be blocked.

Whenever Ghastlord of Fugue deals combat damage to a player, that player reveals their hand. You choose a card from it. That player exiles that card.

Flying

Other creatures have base power and toughness 1/1.

At the beginning of your upkeep, remove a -1/-1 counter from each creature you control.

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

You can't spend mana to cast this spell.

Convoke, delve (Each creature you tap while casting this spell pays for {1} or one mana of that creature's color. Each card you exile from your graveyard pays for {1}.)

You may cast Hogaak, Arisen Necropolis from your graveyard.

Trample

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Ravnica enters the battlefield, exile target nonland permanent an opponent controls that isn't exactly two colors.

Whenever you cast a spell that's exactly two colors, look at the top six cards of your library. You may reveal a card that's exactly two colors from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Flying

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Creatures your opponents control with counters on them can't attack or block.

{1}: Add {B} or {R}. Activate no more than three times each turn.

Morselhoarder enters the battlefield with two -1/-1 counters on it.

Remove a -1/-1 counter from Morselhoarder: Add one mana of any color.

Flying, hexproof from multicolored

Whenever Niv-Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target player draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors.

Exile an instant or sorcery spell you control: Put two +1/+1 counters on Nivmagus Elemental. (That spell won't resolve.)

Flying

Attacking creatures you control get +2/+0.

Noxious Hatchling enters the battlefield with four -1/-1 counters on it.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Whenever you cast a black spell, remove a -1/-1 counter from Noxious Hatchling.

Whenever you cast a green spell, remove a -1/-1 counter from Noxious Hatchling.

Overbeing of Myth's power and toughness are each equal to the number of cards in your hand.

At the beginning of your draw step, draw an additional card.

Protection from blue, from black, and from red

Flash

Defender, flying

{W/B}{W/B}{W/B}: Restless Apparition gets +3/+3 until end of turn.

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Flying

When Returned Pastcaller enters the battlefield, return target Spirit, instant, or sorcery card from your graveyard to your hand.

Shrewd Hatchling enters the battlefield with four -1/-1 counters on it.

{U/R}: Target creature can't block Shrewd Hatchling this turn.

Whenever you cast a blue spell, remove a -1/-1 counter from Shrewd Hatchling.

Whenever you cast a red spell, remove a -1/-1 counter from Shrewd Hatchling.

Haste

{T}: Target black or red creature gains haste until end of turn.

Sootwalkers can't be blocked by white creatures.

{B}{R}: Each player loses 1 life.

Whenever Spitemare is dealt damage, it deals that much damage to any target.

Sturdy Hatchling enters the battlefield with four -1/-1 counters on it.

{G/U}: Sturdy Hatchling gains shroud until end of turn. (It can't be the target of spells or abilities.)

Whenever you cast a green spell, remove a -1/-1 counter from Sturdy Hatchling.

Whenever you cast a blue spell, remove a -1/-1 counter from Sturdy Hatchling.

Flying

If a source would deal damage to Swans of Bryn Argoll, prevent that damage. The source's controller draws cards equal to the damage prevented this way.

Flying

Lifelink

Voracious Hatchling enters the battlefield with four -1/-1 counters on it.

Whenever you cast a white spell, remove a -1/-1 counter from Voracious Hatchling.

Whenever you cast a black spell, remove a -1/-1 counter from Voracious Hatchling.

Companion -- Each permanent card in your starting deck has an activated ability. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)

Abilities you activate that aren't mana abilities cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

{1}, {T}: Target creature can't block this turn.