Activated abilities of creatures you control cost less to activate, where X is Agatha of the Vile Cauldron's power. This effect can't reduce the mana in that cost to less than one mana.

: Other creatures you control get +1/+1 and gain trample and haste until end of turn.

Flying

Whenever you cast your first spell during each opponent's turn, create a 1/1 black Faerie Rogue creature token with flying.

Whenever one or more Faeries you control deal combat damage to a player, goad target creature that player controls.

Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following abilities until end of turn.)

Deathtouch

Whenever this creature deals combat damage to a player or battle, return target creature card from your graveyard to the battlefield.

Whenever Ashcoat of the Shadow Swarm attacks or blocks, other Rats you control get +X/+X until end of turn, where X is the number of Rats you control.

At the beginning of your end step, you may mill four cards. If you do, return up to two Rat creature cards from your graveyard to your hand. (To mill a card, put the top card of your library into your graveyard.)

, Sacrifice up to three permanents: If there were three or more card types among the sacrificed permanents, each opponent loses 3 life, you gain 3 life, and you draw three cards.

Flying

Whenever a player attacks one of your opponents, if that opponent has more life than another of your opponents, that attacking player draws a card and you put two +1/+1 counters on a creature you control.

When Callous Bloodmage enters the battlefield, choose one —

• Create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."

• You draw a card and you lose 1 life.

• Exile target player's graveyard.

When CARDNAME enters the battlefield, create two 1/1 black Insect creature tokens.

Whenever CARDNAME attacks, you may sacrifice an Insect. When you do, curse defending player. (Create a black Aura Curse enchantment token that's attached to that player. It has enchant player and "At the beginning of your upkeep, you lose 1 life.")

Menace (This creature can't be blocked except by two or more creatures.)

Haste

Daring Fiendbonder attacks each combat if able.

, Exile Daring Fiendbonder from your graveyard: Put an indestructible counter on target creature. Activate only as a sorcery.

Whenever another Human enters the battlefield under your control, Dawnhart Disciple gets +1/+1 until end of turn.

When Dawnhart Mentor enters the battlefield, create a 1/1 white Human creature token.

Coven — : Target creature you control gets +3/+3 and gains trample until end of turn. Activate only if you control three or more creatures with different powers.

Vigilance

Coven — At the beginning of combat on your turn, if you control three or more creatures with different powers, creatures you control get +1/+0 until end of turn.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

When Diminisher Witch enters the battlefield, if it was bargained, create a Cursed Role token attached to target creature an opponent controls. (If you control another Role on it, put that one into the graveyard. Enchanted creature is 1/1.)

Dread Warlock can't be blocked except by black creatures.

: Put a +1/+1 counter on another target creature, then Embrose, Dean of Shadow deals 2 damage to that creature.

Whenever a creature you control with a +1/+1 counter on it dies, draw a card.

Lifelink

Whenever an Aura you control becomes attached to a nonland permanent an opponent controls with mana value less than or equal to that Aura's mana value, gain control of that permanent for as long as that Aura is attached to it.

Double strike

Magecraft — Whenever you cast or copy an instant or sorcery spell, return target nonlegendary creature card from your graveyard to your hand.

, Sacrifice a creature: Put two +1/+1 counters on target creature.

, Remove a counter from a creature you control: Create a Treasure token.

, Sacrifice an artifact: Create a 2/1 white and black Inkling creature token with flying.

: Untap Fain, the Broker.

Whenever you roll one or more dice, create a 1/1 blue Faerie Dragon creature token with flying.

Ward—, Pay 2 life.

Skeletons and Zombies you control get +1/+1 and have menace.

Whenever you commit a crime, create two tapped 2/2 blue and black Zombie Rogue creature tokens. This ability triggers only once each turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

Flash

Tragic Backstory — Cast this spell only if a creature died this turn.

Trample

At the beginning of your end step, create a number of Food tokens equal to the number of nontoken creatures you had enter the battlefield under your control this turn.

, Sacrifice a Food: Target creature gains indestructible until end of turn. Tap it.

Circle of Death — : Roll a d20.

1–9 | Each opponent loses 2 life.

10–19 | Each opponent loses 2 life and you gain 2 life.

20 | Each opponent loses 2 life and you gain 2 life. Create two Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")

When Hired Hexblade enters the battlefield, if mana from a Treasure was spent to cast it, you draw a card and you lose 1 life.

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)

, Remove two +1/+1 counters from among creatures you control: Destroy target artifact or enchantment.

Whenever you commit a crime, exile up to one target black card from your graveyard and copy it. You may cast the copy. If you do, you lose 2 life. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime. Copies of permanent spells become tokens.)

Flying, lifelink, protection from Vampires

Katilda, Dawnhart Martyr's power and toughness are each equal to the number of permanents you control that are Spirits and/or enchantments.

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Menace

Whenever you sacrifice a creature, you may pay . If you do, draw a card. ( can be paid with either or .)

, Sacrifice a creature: Kels, Fight Fixer gains indestructible until end of turn.

As long as it's your turn, Leech Fanatic has lifelink.

Deathtouch

Whenever a Curse is put into your graveyard from the battlefield, return it to the battlefield attached to you at the beginning of the next end step.

At the beginning of your upkeep, you may attach a Curse attached to you to one of your opponents. If you do, draw two cards.

Flying

, : Rather than pay the mana cost of the next spell you cast this turn, you may pay life equal to that spell's mana value.

When Nezumi Linkbreaker dies, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

Menace

Whenever Obeka, Splitter of Seconds deals combat damage to a player, you get that many additional upkeep steps after this phase.

: Search your library for a card, put it into your graveyard, then shuffle. If it's an instant or sorcery card, put a +1/+1 counter on Oriq Loremage.

Flying

Ward—Pay 3 life. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 3 life.)

Rats you control have menace.

, : Create a 1/1 black Rat creature token.

, , Sacrifice three Rats: Gain control of target creature.

, Pay 3 life, Sacrifice Priest of Fell Rites: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Deathtouch

Mystic Arcanum — At the beginning of your end step, exile the top card of your library. Until the end of your next turn, you may play that card.

Pact Boon — Whenever you play a card from exile, create a Treasure token.

Menace

: Add two mana in any combination of colors. Spend this mana only to cast Dragon creature spells.

Once during each of your turns, you may cast a Dragon creature spell from your graveyard.

Whenever you cast a Dragon creature spell from your graveyard, it gains "When this creature dies, exile it."

Whenever Scalestorm Summoner attacks, create a 3/1 red Dinosaur creature token if you control a creature with power 4 or greater.

Menace (This creature can't be blocked except by two or more creatures.)

Whenever one or more artifacts and/or creatures you control are put into a graveyard from the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Flying

Whenever another creature you control with flying dies, put a +1/+1 counter on target creature you control.

Temporal Foresight — When Sibylline Soothsayer enters the battlefield, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or greater. Exile that card with three time counters on it. If it doesn't have suspend, it gains suspend. Put the rest of the revealed cards on the bottom of your library in a random order.

, Sacrifice another creature or an artifact: For each opponent, you mill a card, then return that card from your graveyard to your hand unless that player pays 3 life. (To mill a card, put the top card of your library into your graveyard.)

Choose a Background (You can have a Background as a second commander.)

When Spiteful Hexmage enters the battlefield, create a Cursed Role token attached to target creature you control. (If you control another Role on it, put that one into the graveyard. Enchanted creature is 1/1.)

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

When Stinging Hivemaster dies, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block."

Return target spell to its owner's hand. (Then exile this card. You may cast the creature later from exile.)

When Tempting Witch enters the battlefield, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

, , Sacrifice a Food: Target player loses 3 life.

When The Hourglass Coven enters the battlefield, draft a card from The Hourglass Coven's spellbook twice, then put those cards onto the battlefield.

Other Warlocks you control get +1/+1.