Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)

As long as Imperious Mindbreaker is paired with another creature, each of those creatures has "Whenever this creature attacks, each opponent mills cards equal to its toughness."

Destroy target land.

Draw a card.

Changeling (This card is every creature type.)

Enchant creature, land, or planeswalker

Enchanted permanent is a colorless land with ": Add " and loses all other card types and abilities.

Enchant creature

Enchanted creature gets +2/+5.

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

Improvised Weaponry deals 2 damage to any target. Create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

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.)

Incandescent Aria deals 3 damage to each nontoken creature.

Enchant creature

At the beginning of your upkeep, you may put a fuse counter on Incendiary.

When enchanted creature dies, Incendiary deals X damage to any target, where X is the number of fuse counters on Incendiary.

Incendiary Flow deals 3 damage to any target. If a creature dealt damage this way would die this turn, exile it instead.

As an additional cost to cast this spell, sacrifice an artifact.

Incendiary Sabotage deals 3 damage to each creature.

Flying

Corrupted — Whenever Incisor Glider attacks, if an opponent has three or more poison counters, creatures you control get +1/+1 until end of turn.

Create five 1/1 white Human creature tokens. If this spell was cast from a graveyard, create ten of those tokens instead.

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

Devoid (This card has no color.)

When Incubator Drone enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add ."

(: Add , , or .)

Indatha Triome enters tapped.

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

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.)

Afterlife 1 (When this permanent is put into a graveyard from the battlefield, create a 1/1 white and black Spirit creature token with flying.)

Enchanted creature gets +1/+1 and has afterlife 1.

Prevent all damage that Indentured Oaf would deal to red creatures.

Enchant permanent

Enchanted permanent has indestructible. (Effects that say "destroy" don't destroy that permanent. A creature with indestructible can't be destroyed by damage.)

Look at the top five cards of your library, then put them back in any order.

Flying

: Target permanent becomes blue in addition to its other colors until end of turn.

As Indominus Rex, Alpha enters, discard any number of creature cards. It enters with a flying counter on it if a card discarded this way has flying. The same is true for first strike, double strike, deathtouch, hexproof, haste, indestructible, lifelink, menace, reach, trample, and vigilance.

When Indominus Rex enters, draw a card for each counter on it.

Flying

Metalcraft — Artifacts you control have shroud as long as you control three or more artifacts. (An artifact with shroud can't be the target of spells or abilities.)

Flash

Enchant creature

Enchanted creature gets +3/+3.

Enchanted creature's controller may have it assign its combat damage as though it weren't blocked.

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.

Enchant creature

Enchanted creature gets +4/+4 and has first strike, and all creatures able to block it do so.

Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Counter target spell. If was spent to cast this spell, that spell's controller mills X cards, where X is the spell's mana value.

Whenever a creature you control attacks this turn, create a 1/1 green and white Citizen creature token that's tapped and attacking.

Flying

At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature of their choice or pays 3 life.

At the beginning of your end step, you may sacrifice a creature. If you do, look at the top X cards of your library, where X is that creature's mana value. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Enchant creature

Enchanted creature has "At the beginning of your upkeep, sacrifice a creature."

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.)

Enchant creature

Enchanted creature gets +2/+1, has haste, and attacks each combat if able.

When enchanted creature dies, you may search your library for a card named Infectious Bloodlust, reveal it, put it into your hand, then shuffle.

At the beginning of your upkeep, sacrifice two Swamps. If you can't, tap Infernal Denizen, and an opponent may gain control of a creature you control of their choice for as long as Infernal Denizen remains on the battlefield.

: Gain control of target creature for as long as Infernal Denizen remains on the battlefield.

Whenever Infernal Medusa blocks a creature, destroy that creature at end of combat.

Whenever Infernal Medusa becomes blocked by a non-Wall creature, destroy that creature at end of combat.

Defender (This creature can't attack.)

Protection from artifacts

Whenever an opponent casts an artifact spell, you may create a 1/1 green Insect creature token.

Whenever Infested Werewolf enters or attacks, create two 1/1 green Insect creature tokens.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

Visit — Draw a card.

Lights — 5, 6

Sunburst (This enters with a charge counter on it for each color of mana spent to cast it.)

, Remove X charge counters from Infused Arrows: Target creature gets -X/-X until end of turn.

Skulk (This creature can't be blocked by creatures with greater power.)

Ingenious Prodigy enters with X +1/+1 counters on it.

At the beginning of your upkeep, if Ingenious Prodigy has one or more +1/+1 counters on it, you may remove a +1/+1 counter from it. If you do, draw a card.

Flying

: Exile target creature card from a graveyard. Put a +1/+1 counter on Inherited Fiend.

: Add . If this ability has been activated four or more times this turn, sacrifice Initiates of the Ebon Hand at the beginning of the next end step.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Ink Dissolver, you may reveal it. If you do, each opponent mills three cards.

Prevent all combat damage that would be dealt to you this turn. For each 1 damage prevented this way, create a 2/1 white and black Inkling creature token with flying.

Enchant creature

Enchanted creature gets +2/+2, has flying, and is a Demon in addition to its other types.

When Inner Demon enters, all non-Demon creatures get -2/-2 until end of turn.

Each player sacrifices a creature of their choice.

Target creature gets +3/+2 until end of turn. Scry 1.

Kicker

Choose one. If this spell was kicked, choose any number instead.

• Put two +1/+1 counters on target creature.

• Target player gains X life, where X is the greatest power among creatures they control.

• Target creature you control fights target creature you don't control.

When Inside Source enters, create a 2/2 white and blue Detective creature token.

, : Target Detective you control gets +2/+0 and gains vigilance until end of turn. Activate only as a sorcery.

As an additional cost to cast this spell, discard X cards.

Search your library for X cards, then shuffle and put those cards on top in any order.