Flying

: Attacking creatures with flying get +1/+1 until end of turn. ( can be paid with either or .)

Whenever three or more creatures you control with flying attack, each player gains control of a nonland permanent of your choice controlled by the player to their right.

Whenever Innocent Bystander is dealt 3 or more damage, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

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.

Parley — Whenever Innocuous Researcher attacks, each player reveals the top card of their library. For each nonland card revealed this way, you investigate. Then each player draws a card.

At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn.

When Inquisitive Puppet enters, scry 1.

Exile Inquisitive Puppet: Create a 1/1 white Human creature token.

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.")

When Insatiable Frugivore enters, create a Food token, then you may exile three cards from your graveyard. If you do, repeat this process.

, Sacrifice X Foods: Creatures you control get +X/+0 and gain menace until end of turn.

Flying, lifelink

: Insatiable Souleater gains trample until end of turn. ( can be paid with either or 2 life.)

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.

, Sacrifice Insidious Fungus: Choose one —

• Destroy target artifact.

• Destroy target enchantment.

• Draw a card. Then you may put a land card from your hand onto the battlefield tapped.

Menace (This creature can't be blocked except by two or more creatures.)

Discard a card, Sacrifice Insolent Neonate: Draw a card.

When Inspired Inventor enters, 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.

When Inspiring Captain enters, creatures you control get +1/+1 until end of turn.

Whenever another creature you control with power 2 or less enters, you gain 1 life and draw a card.

Whenever Inspiring Unicorn attacks, creatures you control get +1/+1 until end of turn.

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

Vicious Mockery — When Insufferable Balladeer enters, target creature an opponent controls can't block this turn. Goad it. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

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, 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.

Flying

Whenever Intet, the Dreamer deals combat damage to a player, you may pay . If you do, exile the top card of your library face down. You may look at that card for as long as it remains exiled. You may play that card without paying its mana cost for as long as Intet remains on the battlefield.

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

: Destroy target creature with power 4 or greater.

: 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.)

Offspring (You may pay an additional as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.)

When this creature enters, target creature you control gets +1/+1 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, tap up to two target creatures your opponents control.

When Invading Manticore enters, amass Zombies 2. (Put two +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

At the beginning of your end step, if you haven't cast a spell from your hand this turn and Inventive Wingsmith doesn't have a flying counter on it, put a flying counter on it.

At the beginning of combat on your turn, switch the power and toughness of each of any number of target creatures until end of turn.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Invisible Stalker can't be blocked.

: Untap another target permanent.

: Untap two other target legendary creatures.

Trample

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

Paradox — Whenever you cast a spell from anywhere other than your hand, create a 2/2 red Alien Warrior creature token.

Whenever you draw your second card each turn, Irencrag Pyromancer deals 3 damage to any target.

: Iridescent Blademaster gets +2/+2 until end of turn.

At the beginning of your end step, create a 1/1 green Insect creature token for each +1/+1 counter you've put on creatures under your control this turn.

Green enchantment spells and white enchantment spells cost more to cast.

Double strike (This creature deals both first-strike and regular combat damage.)

Menace (This creature can't be blocked except by two or more creatures.)

When Iron Bully enters, put a +1/+1 counter on target creature.

Haste

Fabricate 1 (When this creature enters, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.)

: Add .

Haste

Iron-Barb Hellion can't block.

When Ironclad Revolutionary enters, you may sacrifice an artifact. If you do, put two +1/+1 counters on Ironclad Revolutionary and each opponent loses 2 life.

Ironclaw Buzzardiers can't block creatures with power 2 or greater.

: Ironclaw Buzzardiers gains flying until end of turn.

Whenever Iron-Craw Crusher attacks, target attacking creature gets +X/+0 until end of turn, where X is Iron-Craw Crusher's power.

//PRT-Prototype_Mech//

Prototype (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

2/5

Ironfist Crusher can block any number of creatures.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Vigilance

Sacrifice Iron-Heart Chimera: Put a +2/+2 counter on target Chimera creature. It gains vigilance. <I>(This effect lasts indefinitely.)</I>

Ironhoof Ox can't be blocked by more than one creature.