Trample, haste

When Impetuous Devils attacks, up to one target creature defending player controls blocks it this combat if able.

At the beginning of the end step, sacrifice Impetuous Devils.

Flying, haste

Impetuous Sunchaser attacks each combat if able.

, Sacrifice Implement of Examination: Draw a card.

When Implement of Examination is put into a graveyard from the battlefield, draw a card.

, Sacrifice Implement of Improvement: You gain 2 life.

When Implement of Improvement is put into a graveyard from the battlefield, draw a card.

, , Sacrifice Implements of Sacrifice: Add two mana of any one color.

Each player may discard their hand and draw cards equal to the greatest mana value of a commander they own on the battlefield or in the command zone.

Vigilance

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

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.)

Enchant permanent

You control enchanted permanent.

Enchanted permanent is legendary.

Zombies you control get +2/+1 until end of turn. Other creatures you control get +1/+1 until end of turn.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)

I, II, III — Create a 3/3 black Wraith creature token with menace. The Ring tempts you.

IV — For each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn. The Ring tempts you.

Reveal the top four cards of your library. You may put a creature card and/or a land card from among them into your hand. Put the rest into your graveyard.

Whenever a creature enters the battlefield under your control, it gets +2/+0 and gains haste until end of turn.

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.)

Eminence — Whenever another nontoken Wizard enters the battlefield under your control, if Inalla, Archmage Ritualist is in the command zone or on the battlefield, you may pay . If you do, create a token that's a copy of that Wizard. The token gains haste. Exile it at the beginning of the next end step.

Tap five untapped Wizards you control: Target player loses 7 life.

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.

Incandescent Aria deals 3 damage to each nontoken creature.

Demonstrate (When you cast this spell, you may copy it. If you do, choose an opponent to also copy it.)

Mill five cards, then return a creature card from your graveyard to the battlefield.

Choose two —

• Incendiary Command deals 4 damage to target player or planeswalker.

• Incendiary Command deals 2 damage to each creature.

• Destroy target nonbasic land.

• Each player discards all the cards in their hand, then draws that many cards.

: Incendiary Oracle gets +1/+0 until end of turn.

If a creature dealt damage by Incendiary Oracle this turn would die, exile it instead.

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."

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

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.

Radiance — Until end of turn, target creature and each other creature that shares a color with it gain "This creature can't block."

For each player, Incite Rebellion deals damage to that player and each creature that player controls equal to the number of creatures they control.

Incited Rabble attacks each combat if able.

: Incited Rabble gets +1/+0 until end of turn.

Exile target creature. That creature's controller creates a 3/3 green Frog Lizard creature token.

Search your library for a card and put that card into your hand. If this spell was cast from a graveyard, instead search your library for two cards and put those cards into your hand. Then shuffle.

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

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.)

Copy target instant or sorcery spell you control. If this spell was cast from a graveyard, copy that spell twice instead. You may choose new targets for the copies.

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

Put a +1/+1 counter on target creature, two +1/+1 counters on another target creature, and three +1/+1 counters on a third target creature.

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.)

: Add one mana of any type that a land you control could produce. If Incubation Druid has a +1/+1 counter on it, add three mana of that type instead.

: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)

Devoid (This card has no color.)

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

Whenever you cast your second spell each turn, Incursion Specialist gets +2/+0 until end of turn and can't be blocked this turn.

(: Add , , or .)

Indatha Triome enters the battlefield 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.

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

When Indoctrination Attendant enters the battlefield, you may return another permanent you control to its owner's hand. If you do, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block."

Destroy X target artifacts and/or creatures. For each permanent destroyed this way, its controller reveals cards from the top of their library until an artifact or creature card is revealed and exiles that card. Those players put the exiled cards onto the battlefield, then shuffle.