Calciderm

Spectral Guardian

Creature — Spirit (2/3)

As long as Spectral Guardian is untapped, noncreature artifacts have shroud. (They can't be the targets of spells or abilities.)

Glimmering Angel

Creature — Angel (2/2)

Flying
: Glimmering Angel gains shroud until end of turn. (It can't be the target of spells or abilities.)

Fountain Watch

Creature — Human Cleric (2/4)

Artifacts and enchantments you control have shroud. (They can't be the targets of spells or abilities.)

Aerie Mystics

Creature — Bird Wizard (3/3)

Flying
: Creatures you control gain shroud until end of turn. (They can't be the targets of spells or abilities.)

Aven Riftwatcher

Creature — Bird Rebel Soldier (2/3)

Flying
Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Aven Riftwatcher enters or leaves the battlefield, you gain 2 life.

Lost Auramancers

Creature — Human Wizard (3/3)

Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Lost Auramancers dies, if it had no time counters on it, you may search your library for an enchantment card, put it onto the battlefield, then shuffle.

Indomitable Archangel

Creature — Angel (4/4)

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.)

Indebted Samurai

Creature — Human Samurai (2/3)

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
Whenever a Samurai you control dies, you may put a +1/+1 counter on Indebted Samurai.

Indoctrination Attendant

Creature — Phyrexian Cleric (3/4)

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
When Indoctrination Attendant enters, 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."

Indomitable Ancients

Creature — Treefolk Warrior (2/10)

Infected Defector

Creature — Phyrexian Knight (4/3)

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.)

Ingenious Leonin

Creature — Cat Soldier (4/4)

: Put a +1/+1 counter on another target attacking creature you control. If that creature is a Cat, it gains first strike until end of turn.

Innocence Kami

Creature — Spirit (2/3)

, : Tap target creature.
Whenever you cast a Spirit or Arcane spell, untap Innocence Kami.

Inquisitor Captain

Creature — Human Cleric (3/3)

Vigilance
When Inquisitor Captain enters, if you cast it and 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.

Inquisitor's Ox

Creature — Ox (2/5)

Delirium — Inquisitor's Ox gets +1/+0 and has vigilance as long as there are four or more card types among cards in your graveyard.

Jamuraan Lion

Creature — Cat (3/1)

, : Target creature can't block this turn.

Jasmine Seer

Creature — Human Wizard (1/1)

, : Reveal any number of white cards in your hand. You gain 2 life for each card revealed this way.

Jazal Goldmane

Legendary Creature — Cat Warrior (4/4)

First strike
: Attacking creatures you control get +X/+X until end of turn, where X is the number of attacking creatures.