Whenever Iceberg Titan attacks, you may tap or untap target artifact or creature.

( can be paid with one mana from a snow source.)

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

Planeswalkers you control have "0: Proliferate" and "–12: Take an extra turn after this one."

Whenever you cast a noncreature spell, choose a counter on target permanent. Put an additional counter of that kind on that permanent.

As Icon of Ancestry enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

, : Look at the top three cards of your library. You may reveal a creature card of the chosen type from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

When Idol of Endurance enters the battlefield, exile all creature cards with mana value 3 or less from your graveyard until Idol of Endurance leaves the battlefield.

, : Until end of turn, you may cast a creature spell from among cards exiled with Idol of Endurance without paying its mana cost.

Flash

When Idol of the Deep King enters the battlefield, it deals 2 damage to any target.

Craft with artifact (, Exile this artifact, Exile another artifact you control or an artifact card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

, , Reveal two cards from your hand that share a color: Draw a card.

: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on . If you do, you may cast that card face down as a 2/2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead it's turned face up and assigns or deals damage, is dealt damage, or becomes tapped. Activate only as a sorcery.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Other artifact creatures you control get +2/+2 as long as you have the city's blessing.

At the beginning of each upkeep, create a 1/1 colorless Gnome artifact creature token.

: Immolating Souleater gets +1/+0 until end of turn. ( can be paid with either or 2 life.)

You may choose not to untap Immovable Rod during your untap step.

Whenever Immovable Rod becomes untapped, venture into the dungeon.

, : For as long as Immovable Rod remains tapped, another target permanent loses all abilities and can't attack or block.

Whenever Imperial Recovery Unit attacks, return target creature or Vehicle card with mana value 2 or less from your graveyard to your hand.

Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

, 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.

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.

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.

: Add , , or .

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

Equipped creature gets +2/+0.

Whenever equipped creature attacks, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block." (Players dealt combat damage by it also get a poison counter.)

Equip

At the beginning of your upkeep, put a time counter on Infinite Hourglass.

All creatures get +1/+0 for each time counter on Infinite Hourglass.

: Remove a time counter from Infinite Hourglass. Any player may activate this ability but only during any upkeep step.

Visit — Draw a card.

Lights — 2, 6

Visit — Draw a card.

Lights — 4, 6

Sunburst (This enters the battlefield 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.

When Inherited Envelope enters the battlefield, the Ring tempts you.

: Add one mana of any color.

When Inquisitive Puppet enters the battlefield, scry 1.

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

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

, , Sacrifice Inscribed Tablet: Reveal the top five cards of your library. Put a land card from among them into your hand and the rest on the bottom of your library in a random order. If you didn't put a card into your hand this way, draw a card.

At the beginning of your upkeep, you may put a harmony counter on Instrument of the Bards.

, : Search your library for a creature card with mana value equal to the number of harmony counters on Instrument of the Bards, reveal it, and put it into your hand. If that card is legendary, create a Treasure token. Then shuffle.

Whenever you crank Insufferable Syphon, target player discards a card.

Equipped creature gets +1/+2.

Whenever an Artificer enters the battlefield under your control, you may attach Inventor's Goggles to it.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Investigator's Journal enters the battlefield with a number of suspect counters on it equal to the greatest number of creatures a player controls.

, , Remove a suspect counter from Investigator's Journal: Draw a card.

, Sacrifice Investigator's Journal: Draw a card.

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

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

, : Target creature gains first strike until end of turn.

At the beginning of each opponent's upkeep, Iron Maiden deals X damage to that player, where X is the number of cards in their hand minus 4.

: Add .

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

Trample, haste

Channel — , Discard Ironhoof Boar: Target creature gets +3/+1 and gains trample until end of turn.

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Whenever an opponent casts a creature spell, that player loses 2 life unless they pay .

Whenever a player casts a white spell, you may pay . If you do, you gain 1 life.

: Add or .

, , Sacrifice Izzet Cluestone: Draw a card.

: Add or .

, , Sacrifice Izzet Locket: Draw two cards.

, : Target creature gains flanking until end of turn. <I>(Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)</I>

: Roll a six-sided die. This ability has the indicated effect.

1 — Sacrifice Jack-in-the-Mox and you lose 5 life.

2 — Add .

3 — Add .

4 — Add .

5 — Add .

6 — Add .

, , Sacrifice Jack-o'-Lantern: Exile up to one target card from a graveyard. Draw a card.

, Exile Jack-o'-Lantern from your graveyard: Add one mana of any color.

: The next time a source of your choice would deal damage to target creature this turn, that source deals that damage to you instead.

When Jade Seedstones enters the battlefield, distribute three +1/+1 counters among one, two, or three target creatures you control.

Craft with creature (, Exile this artifact, Exile a creature you control or a creature card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

When Jadeheart Attendant enters the battlefield, you gain life equal to the mana value of the exiled card used to craft it.

Whenever you crank Jamming Device, creatures target player controls get -1/-1 until end of turn.