You may have Imposter Mech enter the battlefield as a copy of a creature an opponent controls, except it's a Vehicle artifact with crew 3 and it loses all other card types.

Crew 3

When Impounding Lot-Bot enters the battlefield, you may say "INCARCERATE" in a robot voice. If you do, exile another target artifact or enchantment until Impounding Lot-Bot leaves the battlefield.

Enchant creature, land, or planeswalker

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

: Reveal the top card of your library. If it isn't a creature card, put it into your graveyard. Otherwise, put that card onto the battlefield. That creature gains haste. Sacrifice it at the beginning of the next end step.

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

Improvised Club deals 4 damage to any target.

Change the target of target spell with a single target. You lose life equal to that spell's mana value.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

When Impulsive Pilferer dies, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Encore (, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

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

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. If this spell was kicked, sacrifice that creature at the beginning of the next end step.

When Iname, Death Aspect enters the battlefield, you may search your library for any number of Spirit cards, put them into your graveyard, then shuffle.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. It perpetually gains "This creature attacks each combat if able."

Enchant creature

When Incriminating Impetus enters the battlefield, suspect enchanted creature. (It has menace and can‘t block.)

Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)

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.

As Indominus Rex, Alpha enters the battlefield, 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 the battlefield, draw a card for each counter on it.

When Indrik Stomphowler enters the battlefield, destroy target artifact or enchantment.

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.

This spell can't be countered.

Inescapable Blaze deals 6 damage to any target.

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Infernal Captor exploits a creature, gain control of target artifact or creature until end of turn. Untap that permanent. It gains haste until end of turn.

Whenever you cast your second spell each turn, put a +1/+1 counter on Infernal Pet and it gains flying until end of turn.

Flying, first strike

, Reveal Infernal Spawn of Evil from your hand, Say "It's coming": Infernal Spawn of Evil deals 1 damage to target opponent or planeswalker. Activate only during your upkeep and only once each turn.

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 the battlefield, you may say "I'm here." If you do, it deals 3 damage to target player.

If you've been dealt damage by two or more creatures this turn, you may pay rather than pay this spell's mana cost.

Inferno Trap deals 4 damage to target creature.

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

Ingenious Prodigy enters the battlefield 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.

Whenever Initiate's Companion deals combat damage to a player, untap target creature or land.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

Flash

Flying

When you cast this spell, draw a card.

Vigilance

When Inquisitor Captain enters the battlefield, if there are twenty or more creature cards with mana value 3 or less among cards in your graveyard, hand, and library, seek two creature cards with mana value 3 or less. Put one of them onto the battlefield and shuffle the other into your library.

Flying, lifelink

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.

Kicker

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

• Target opponent discards two cards.

• Return target creature card with mana value 2 or less from your graveyard to the battlefield.

• Destroy target creature with mana value 3 or less.

Legacy — Before the game starts, choose a keyword or ability word and write it below.

Spells with __________ you cast cost less to cast.

Creatures you control get +2/+1 until end of turn.

When Inspired Inventor enters the battlefield, choose one —

• You get (three energy counters).

• Put a +1/+1 counter on target creature.

• Create a 1/1 colorless Servo artifact creature token.

Flash

Flying

Whenever you cast a Wizard spell, you may untap Inspired Sprite.

: Draw a card, then discard a card.

Target player gains 5 life, Inspired Ultimatum deals 5 damage to any target, then you draw five cards.

Draw a card for each creature you control with a +1/+1 counter on it. Those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

When Inspiring Cleric enters the battlefield, you gain 4 life.

Commander creatures you own have "Creature tokens you control get +2/+2."

Draw two cards. Exile Inspiring Refrain with three time counters on it.

Suspend 3— (Rather than cast this card from your hand, you may pay and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for .)

Inspiring Vantage enters the battlefield tapped unless you control two or fewer other lands.

: Add or .

Untap target creature. It gets +2/+4 until end of turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Ward

When Interdisciplinary Mascot enters the battlefield, look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.

Interplanar (This creature enters onto the interplanar battlefield. Players can't control creatures on the interplanar battlefield.)

Vigilance, haste

Whenever a player attacks with a creature with power 4 or greater, CARDNAME also attacks the player or planeswalker that creature is attacking.

The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

At the beginning of your next upkeep, pay . If you don't, you lose the game.

Lifelink

When Intrepid Adversary enters the battlefield, you may pay any number of times. When you pay this cost one or more times, put that many valor counters on Intrepid Adversary.

Creatures you control get +1/+1 for each valor counter on Intrepid Adversary.

Reach

Pack tactics — Whenever Intrepid Outlander attacks, if you attacked with creatures with total power 6 or greater this combat, venture into the dungeon. (Enter the first room or advance to the next room.)

Trample

When Intrepid Provisioner enters the battlefield, another target Human you control gets +2/+2 until end of turn.

Whenever Intrepid Trufflesnout attacks alone, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Vigilance

When Intrusive Packbeast enters the battlefield, tap up to two target creatures your opponents control.

(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 New Capenna enters the battlefield, you may sacrifice an artifact or creature. When you do, exile target artifact or creature an opponent controls.