Science Teacher — Each Saga spell you cast has replicate. The replicate cost is equal to its mana cost. (When you cast that Saga, copy it for each time you paid its replicate cost. Copies of Saga spells become tokens.)

Doctor's companion (You can have two commanders if the other is the Doctor.)

Whenever Ian the Reckless attacks, if it's modified, you may have it deal damage equal to its power to you and any target. (Equipment, Auras you control, and counters are modifications.)

, , Discard a card: Create two 1/1 white Citizen creature tokens.

Icatian Javelineers enters with a javelin counter on it.

, Remove a javelin counter from Icatian Javelineers: It deals 1 damage to any target.

Icatian Moneychanger enters with three credit counters on it.

When Icatian Moneychanger enters, it deals 3 damage to you.

At the beginning of your upkeep, put a credit counter on Icatian Moneychanger.

Sacrifice Icatian Moneychanger: You gain 1 life for each credit counter on Icatian Moneychanger. Activate only during your upkeep.

: Target creature gets +1/+1 until end of turn.

First strike; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Whenever Icatian Skirmishers attacks, all creatures banded with it gain first strike until end of turn.

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

Flying

When Icefall Regent enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Icefall Regent.

Spells your opponents cast that target Icefall Regent cost more to cast.

Flying

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

When Icefeather Aven is turned face up, you may return another target creature to its owner's hand.

: Icehide Troll gets +2/+0 and gains indestructible until end of turn. Tap it. (Damage and effects that say "destroy" don't destroy it. can be paid with one mana from a snow source.)

Vigilance

Whenever Icewrought Sentry attacks, you may pay . When you do, tap target creature an opponent controls.

Whenever you tap an untapped creature an opponent controls, Icewrought Sentry gets +2/+1 until end of turn.

Whenever an opponent casts an instant spell other than the first instant spell that player casts each turn, Ichneumon Druid deals 4 damage to that player.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

When Ichor Rats enters, each player gets a poison counter.

Whenever you cast a noncreature spell, put an oil counter on Ichor Synthesizer.

As long as Ichor Synthesizer has four or more oil counters on it, it gets +2/+0 and can't be blocked.

Haste

At the beginning of the end step, sacrifice Ichorid.

At the beginning of your upkeep, if Ichorid is in your graveyard, you may exile a black creature card other than Ichorid from your graveyard. If you do, return Ichorid to the battlefield.

Deathtouch

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

Each +1/+1 counter on a creature you control is also a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

, : Roll two six-sided dice. For each odd result, put a +1/+1 counter on a creature of your choice. Activate only as a sorcery.

Whenever Identity Thief attacks, you may exile another target nontoken creature. If you do, Identity Thief becomes a copy of that creature until end of turn. Return the exiled card to the battlefield under its owner's control at the beginning of the next end step.

Flying

: Ifh-Bíff Efreet deals 1 damage to each creature with flying and each player. Any player may activate this ability.

This spell costs less to cast if there is a land card in your graveyard.

When Igneous Elemental enters, you may have it deal 2 damage to target creature.

Haste

Swampcycling , mountaincycling (, Discard this card: Search your library for a Swamp or Mountain card, reveal it, put it into your hand, then shuffle.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

: Add , , or .

Protection from white

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-3

2/6

Vigilance

LEVEL 4+

3/10

Vigilance

Trample

Whenever Ilharg, the Raze-Boar attacks, you may put a creature card from your hand onto the battlefield tapped and attacking. Return that creature to your hand at the beginning of the next end step.

When Ilharg, the Raze-Boar dies or is put into exile from the battlefield, you may put it into its owner's library third from the top.

Trample

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

Double strike

Whenever Illuminator Virtuoso becomes the target of a spell you control, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flying, trample

Whenever this creature mutates, exile cards from the top of your library until you exile a nonland permanent card. Put that card onto the battlefield or into your hand.

Draft Illusionary Informant face up.

During the draft, you may turn Illusionary Informant face down. If you do, look at the next card drafted by a player of your choice.

Flying

Flying

When Illusionary Servant becomes the target of a spell or ability, sacrifice it.

Flash (You may cast this spell any time you could cast an instant.)

Whenever Illusory Ambusher is dealt damage, draw that many cards.

Flying

When you cast a spell, sacrifice Illusory Demon.

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.

: Choose a creature type other than Wall. Target creature becomes that type until end of turn.

Whenever Imaryll, Elfhame Elite attacks, it gets +X/+X until end of turn, where X is the number of other Elves you control.

You may have Imaryll assign its combat damage as though it weren't blocked.

: Put a +1/+1 counter on target creature for each Elf you control.

When Immersturm Raider enters, you may discard a card. If you do, draw a card.

Devoid (This card has no color.)

: Each creature with toughness greater than its power can't block this turn. ( represents colorless mana.)

Whenever an opponent activates an ability of an artifact, creature, or land that isn't a mana ability, Immolation Shaman deals 1 damage to that player.

: Immolation Shaman gets +3/+3 and gains menace until end of turn.

Whenever an instant or sorcery spell you control that targets only a single creature deals damage to that creature, Imodane deals that much damage to each opponent.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

At the beginning of your end step, if you have the initiative, draw a card. Draw another card if you've completed a dungeon.

Choose a Background (You can have a Background as a second commander.)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Spells you cast with mana value 6 or greater have cascade.

Whenever another creature you control enters, you gain 1 life.

Trample

Tap an untapped red creature you control other than Impelled Giant: Impelled Giant gets +X/+0 until end of turn, where X is the power of the creature tapped this way.

Double strike

Whenever a Samurai or Warrior you control attacks alone, draft a card from Imperial Blademaster's spellbook.

Flying

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

When Imperial Hellkite is turned face up, you may search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

Flying

When Imperial Recruiter enters, search your library for a creature card with power 2 or less, reveal it, put it into your hand, then shuffle.

Spend only mana produced by basic lands to cast this spell.