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.

You may spend mana as though it were mana of any color to activate abilities of creatures you control.

Creatures you control with +1/+1 counters on them have all activated abilities of all creature cards exiled with Agatha's Soul Cauldron.

: Exile target card from a graveyard. When a creature card is exiled this way, put a +1/+1 counter on target creature you control.

Arixmethes, Slumbering Isle enters tapped with five slumber counters on it.

As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.)

Whenever you cast a spell, you may remove a slumber counter from Arixmethes.

: Add .

Put a +1/+1 counter on target creature. That creature gains indestructible until end of turn.

Menace

When Atris, Oracle of Half-Truths enters, target opponent looks at the top three cards of your library and separates them into a face-down pile and a face-up pile. Put one pile into your hand and the other into your graveyard.

Each player discards all the cards in their hand, then creates that many 2/2 black Zombie creature tokens.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Whenever Belligerent Guest deals combat damage to a player, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Target permanent gains hexproof and indestructible until end of turn. If it's an artifact creature, it gets +2/+2 until end of turn.

Enchant creature

: Enchanted creature gets +1/+1 until end of turn.

Blood Hypnotist can't block.

Whenever you sacrifice one or more Blood tokens, target creature can't block this turn. This ability triggers only once each turn.

Flying

, Exile seven other cards from your graveyard: Return Bone Dragon from your graveyard to the battlefield tapped.

Flying

Whenever you cast a creature spell with mana value 3 or less, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Constellation — Whenever Calix, Guided by Fate or another enchantment you control enters, put a +1/+1 counter on target creature.

Whenever Calix or an enchanted creature you control deals combat damage to a player, you may create a token that's a copy of a nonlegendary enchantment you control. Do this only once each turn.

Target player mills four cards. (Then exile this card. You may cast the creature later from exile.)

Aftermath (Cast this spell only from your graveyard. Then exile it.)

Choose a card name. Until your next turn, your opponents can't cast spells with the chosen name.

When Coveted Jewel enters, draw three cards.

: Add three mana of any one color.

Whenever one or more creatures an opponent controls attack you and aren't blocked, that player draws three cards and gains control of Coveted Jewel. Untap it.

Cruel Somnophage's power and toughness are each equal to the number of creature cards in all graveyards.

Enchant player

Whenever a player attacks enchanted player with one or more creatures, that attacking player may discard a card. If the player does, they draw a card.

Enchant creature an opponent controls

When enchanted creature dies, exile cards equal to its power from the top of its owner's library. You may cast spells from among those cards for as long as they remain exiled, and mana of any type can be spent to cast them.

Counter target spell. Its controller mills three cards.

: Add .

: Dread Statuary becomes a 4/2 Golem artifact creature until end of turn. It's still a land.

Return any number of permanent cards with different names from your graveyard to the battlefield.

Flying

Other creatures you control with flying get +1/+1.

Indestructible

As long as your devotion to black is less than five, Erebos isn't a creature. (Each in the mana costs of permanents you control counts toward your devotion to black.)

Your opponents can't gain life.

, Pay 2 life: Draw a card.

: Evolved Sleeper becomes a Human Cleric with base power and toughness 2/2.

: If Evolved Sleeper is a Cleric, put a deathtouch counter on it and it becomes a Phyrexian Human Cleric with base power and toughness 3/3.

: If Evolved Sleeper is a Phyrexian, put a +1/+1 counter on it, then you draw a card and you lose 1 life.

Return target spell to its owner's hand.

You draw three cards and you lose 3 life.

Corrupted — Each opponent who has three or more poison counters loses 3 life.

Flames of the Raze-Boar deals 4 damage to target creature an opponent controls. Then Flames of the Raze-Boar deals 2 damage to each other creature that player controls if you control a creature with power 4 or greater.

Whenever you pay life, put that many blood counters on Font of Agonies.

, Remove four blood counters from Font of Agonies: Destroy target creature.

When Frillscare Mentor enters, put a menace counter on target non-Human creature you control. (It can't be blocked except by two or more creatures.)

, : Put a +1/+1 counter on each creature you control with menace.

Haste

Celebration — As long as two or more nonland permanents entered the battlefield under your control this turn, Goddric, Cloaked Reveler is a Dragon with base power and toughness 4/4, flying, and ": Dragons you control get +1/+0 until end of turn." (It loses all other creature types.)

Exile target nonlegendary creature, then return it to the battlefield under its owner's control. If it entered under your control, put a +1/+1 counter on it. Otherwise, tap it.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Indestructible

As long as your devotion to white is less than five, Heliod isn't a creature. (Each in the mana costs of permanents you control counts toward your devotion to white.)

Other creatures you control have vigilance.

: Create a 2/1 white Cleric enchantment creature token.

You may cast spells as though they had flash.

Spells you cast cost less to cast for each card your opponents have drawn this turn.

Flying, deathtouch, lifelink

: Each creature you control with flying, deathtouch, and/or lifelink gets +1/+0 until end of turn.

Flying

, Exile Heron-Blessed Geist from your graveyard: Create two 1/1 white Spirit creature tokens with flying. Activate only if you control an enchantment and only as a sorcery.

Indestructible

As long as your devotion to red and white is less than seven, Iroas isn't a creature.

Creatures you control have menace.

Prevent all damage that would be dealt to attacking creatures you control.

Indestructible

As long as your devotion to green and white is less than seven, Karametra isn't a creature.

Whenever you cast a creature spell, you may search your library for a Forest or Plains card, put it onto the battlefield tapped, then shuffle.

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

Other Rats you control have toxic 1.

When Karumonix enters, look at the top five cards of your library. You may reveal any number of Rat cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order.

Kicker (You may pay an additional as you cast this spell.)

Haste

When Keldon Overseer enters, if it was kicked, gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

Trample

Kolaghan Forerunners's power is equal to the number of creatures you control.

Dash (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.)

When Kroxa enters, sacrifice it unless it escaped.

Whenever Kroxa enters or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life.

Escape—, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Reveal the top two cards of your library. Put all creature and land cards revealed this way into your hand and the rest on the bottom of your library in any order.

Haste

Cycling (, Discard this card: Draw a card.)

, Sacrifice Liliana's Steward: Target opponent discards a card. Activate only as a sorcery.

Gain control of target creature until end of turn. Untap that creature. It gains haste and menace until end of turn. (A creature with menace can't be blocked except by two or more creatures.)

Cycling (, Discard this card: Draw a card.)

Flying, vigilance

When Malcator's Watcher dies, draw a card.

Flying, haste

At the beginning of combat on your turn, up to two target creatures you control each get +1/+0 until end of turn.

Changeling (This card is every creature type.)

When Masked Vandal enters, you may exile a creature card from your graveyard. If you do, exile target artifact or enchantment an opponent controls.