Creatures you control are Slivers in addition to their other creature types.

Create three 1/1 white Rabbit creature tokens.

If you would lose unspent mana, that mana becomes colorless instead.

Menace

When Horned Stoneseeker enters, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

When Horned Stoneseeker leaves the battlefield, sacrifice a Powerstone.

When Hotshot Investigators enters, return up to one other target creature to its owner's hand. If you controlled it, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Flying

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

: Put target card from a graveyard on the bottom of its owner's library.

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Howltooth Hollow enters tapped.

: Add .

, : You may play the exiled card without paying its mana cost if each player has no cards in hand.

Ward

At the beginning of your first main phase, add .

First strike

Dinosaur spells you cast have prowl . (You may cast a spell for its prowl cost if you dealt combat damage to a player this turn with a creature with any of its creature types.)

As Hydroelectric Laboratory enters, you may pay 3 life. If you don't, it enters tapped.

: Add .

When Hyrax Tower Scout enters, untap target creature.

Icatian Store enters tapped.

You may choose not to untap Icatian Store during your untap step.

At the beginning of your upkeep, if Icatian Store is tapped, put a storage counter on it.

, Remove any number of storage counters from Icatian Store: Add for each storage counter removed this way.

Destroy target land.

Each +1/+1 counter on a creature you control is also a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

, : Roll two six-sided dice. For each odd result, put a +1/+1 counter on a creature of your choice. Activate only as a sorcery.

Search your library for an enchantment card, reveal it, put it into your hand, then shuffle.

Double strike

Whenever Illuminator Virtuoso becomes the target of a spell you control, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Flying

Whenever this creature becomes tapped, exile up to one target card from a graveyard and put a +1/+1 counter on this creature.

Sacrifice another creature: This creature gains indestructible until end of turn. Tap it.

Whenever another creature you control enters, you gain 1 life.

Changeling (This card is every creature type.)

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Enchant creature, planeswalker, or Clue

Enchanted permanent is a colorless Clue artifact with ", Sacrifice this artifact: Draw a card" and loses all other abilities. (It's no longer a creature or planeswalker.)

Flying, trample

Whenever Incinerator of the Guilty deals combat damage to a player, you may collect evidence X. When you do, Incinerator of the Guilty deals X damage to each creature and planeswalker that player controls. (To collect evidence X, exile cards with total mana value X or greater from your graveyard.)

Bloodthirst X (This creature enters with X +1/+1 counters on it, where X is the damage dealt to your opponents this turn.)

Menace

Enrage — Whenever Indoraptor, the Perfect Hybrid is dealt damage, choose an opponent at random. Indoraptor deals damage equal to its power to that player unless they sacrifice a nontoken creature of their choice.

Lifelink

, Sacrifice a creature: Put a +1/+1 counter on each Vampire you control.

When Infected Defector dies, incubate 3. (Create an Incubator token with three +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, Infernal Phantom gets +2/+0 until end of turn.

When Infernal Phantom dies, it deals damage equal to its power to any target.

Flying, first strike, trample, haste

This spell costs less to cast for each card you've revealed this turn.

When Infernius Spawnington III, Esq. enters, you may say "I'm here." If you do, it deals 3 damage to target player.

Enchant creature

Creatures you control that are enchanted get +1/+1 and can't be blocked except by creatures with defender.

When Injector Crocodile dies, incubate 3. (Create an Incubator token with three +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

Swampcycling (, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Flying

: Inkrise Infiltrator gets +2/+2 until end of turn.

You may reveal the first card you draw each turn as you draw it. Whenever you reveal an instant or sorcery card this way, create Cherubael, a legendary 4/4 black Demon creature token with flying.

Whenever Inquisitor Eisenhorn deals combat damage to a player, investigate that many times. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Vigilance

Unquestionable Wisdom — Other creatures you control get +1/+0 and have vigilance.

Hunt for Heresy — , : Tap target creature an opponent controls. Investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

If equipped creature would deal combat damage, it deals double that damage instead.

If another creature would deal combat damage to equipped creature, it deals double that damage to equipped creature instead.

Equip

Prevent all damage target attacking or blocking creature would deal this turn. If that creature is black or red, destroy it.

, , Discard a card: Creatures target player controls attack this turn if able.

Whenever a player casts a red spell, you may pay . If you do, target creature can't block this turn.

Draw three cards. Create a 1/1 blue Faerie creature token with flying and "This creature can block only creatures with flying."

Gift a tapped Fish (You may promise an opponent a gift as you cast this spell. If you do, they create a tapped 1/1 blue Fish creature token before its other effects.)

Return target creature an opponent controls to its owner's hand. If the gift was promised, instead return target nonland permanent an opponent controls to its owner's hand.

Destroy target land. Into the Maw of Hell deals 13 damage to target creature.

Search your library for a snow land card, put it onto the battlefield tapped, then shuffle.

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

Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

At the beginning of your upkeep, look at the top card of your library. If it's a land card, you may put it onto the battlefield.

: Add one mana of any color.

: Exile target card from a graveyard.

You may cast Dinosaur creature spells from among cards you own exiled with Intrepid Paleontologist. If you cast a spell this way, that creature enters with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.)

Scry 2, then draw a card.

Inventor's Apprentice gets +1/+1 as long as you control an artifact.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life.

: Add .

, , Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

For each Aura and Equipment you control, you may attach it to a creature you control.

, Remove a +1/+1 counter or a charge counter from a permanent you control: Ion Storm deals 2 damage to any target.

: Add .

, : Scry 1, then you may reveal the top card of your library. If a basic land card is revealed this way, put it onto the battlefield tapped. Activate only if an opponent controls at least two more lands than you.

Face-down creatures get +1/+1.

: Turn target face-down creature face up.