Vigilance

, Sacrifice a Room: Intruding Soulrager deals 2 damage to each opponent. Draw a card.

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Azgol enters, target player sacrifices a creature or planeswalker and loses 1 life.

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Gobakhan enters, look at target opponent's hand. You may exile a nonland card from it. For as long as that card remains exiled, its owner may play it. A spell cast this way costs more to cast.

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Moag enters, put a +1/+1 counter on each creature you control.

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Regatha enters, it deals 4 damage to another target battle or opponent and 1 damage to up to one target creature.

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

I — Scry 2.

II — Draw a card. Then you may reveal a Giant card from your hand. When you do, Invasion of the Giants deals 2 damage to target opponent or planeswalker.

III — The next Giant spell you cast this turn costs less to cast.

Counter target sorcery spell.

Delirium — If there are four or more card types among cards in your graveyard, search the graveyard, hand, and library of that spell's controller for any number of cards with the same name as that spell, exile those cards, then that player shuffles.

Equipped creature gets +1/+2.

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

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

When Inverted Iceberg enters, mill a card, then draw a card. (To mill a card, put the top card of your library into your graveyard.)

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.)

If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life.

Target creature gets +4/+4 until end of turn.

Whenever a player cycles a card, you may put a +1/+1 counter on target creature.

Invigorating Hot Spring enters with four +1/+1 counters on it.

Modified creatures you control have haste. (Equipment, Auras you control, and counters are modifications.)

Remove a +1/+1 counter from Invigorating Hot Spring: Put a +1/+1 counter on target creature you control. Activate only as a sorcery and only once each turn.

Enchant creature

Enchanted creature gets +2/+2, has vigilance, and can block an additional creature each combat.

: Untap another target permanent.

: Untap two other target legendary creatures.

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

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

Enchant creature you control

When Iroas's Blessing enters, it deals 4 damage to target creature or planeswalker an opponent controls.

Enchanted creature gets +1/+1.

Haste

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

Exile target artifact or enchantment.

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

Whenever another creature you control with power 2 or less enters, you may discard a card. If you do, draw a card. Do this only once each turn.

Irrigation Ditch enters tapped.

: Add .

, Sacrifice Irrigation Ditch: Add .

Damage can't be prevented this turn. If a source you control would deal damage this turn to an opponent or a permanent an opponent controls, it deals triple that damage instead.

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

Reach

Delirium — When Ishkanah, Grafwidow enters, if there are four or more card types among cards in your graveyard, create three 1/2 green Spider creature tokens with reach.

: Target opponent loses 1 life for each Spider you control.

When It That Gets Left Hanging enters, ask a person outside the game to high-five you. If they won't, It That Gets Left Hanging gains haste until end of turn.

Flying

When Ithilien Kingfisher dies, draw a card.

Flying

When Ivory Gargoyle dies, return it to the battlefield under its owner's control at the beginning of the next end step and you skip your next draw step.

: Exile Ivory Gargoyle.

Protection from red

Creatures named Ivory Guardians get +1/+1 as long as an opponent controls a nontoken red permanent.

When Ixalan's Binding enters, exile target nonland permanent an opponent controls until Ixalan's Binding leaves the battlefield.

Your opponents can't cast spells with the same name as the exiled card.

Izzet Guildgate enters tapped.

: Add or .

, : Add .

+1: Until your next turn, whenever a creature an opponent controls attacks, it gets -1/-0 until end of turn.

−2: Reveal the top three cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other on the bottom of your library in any order.

−8: For each player, search that player's library for a nonland card and exile it, then that player shuffles. You may cast those cards without paying their mana costs.

+1: Draw a card.

+1: Untap all creatures you control.

−9: Gain control of up to three target creatures.

+1: Look at the top two cards of your library. Put one of them into your graveyard.

−3: Return another target nonland permanent to its owner's hand.

−8: Each player shuffles their hand and graveyard into their library. You draw seven cards.

Draw three cards.

At the beginning of your end step, if you control no creatures with decayed, create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)

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

When Jade Guardian enters, put a +1/+1 counter on target Merfolk you control.

: Add . When you spend this mana to cast a Dragon creature spell, it enters with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)

When Jadelight Spelunker enters, it explores X times. (To have it explore, reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard.)

Jagged Lightning deals 3 damage to each of two target creatures.

Jagged-Scar Archers's power and toughness are each equal to the number of Elves you control.

: Jagged-Scar Archers deals damage equal to its power to target creature with flying.

, : Shuffle Jalum Grifter and two lands you control face down. Target opponent chooses one of those cards. Turn the cards face up. If they chose Jalum Grifter, sacrifice it. Otherwise, destroy target permanent.

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

, : Untap target creature.

Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.

, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.

Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand.

Flash

When Javelin of Lightning enters, attach it to target creature you control.

During your turn, equipped creature gets +2/+0 and has first strike.

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

+1: Create a 1/1 red Monk creature token with prowess.

−1: Exile the top two cards of your library. Choose one of them. You may play that card this turn.

−2: Choose target creature an opponent controls. Whenever you attack this turn, Jaya, Fiery Negotiator deals damage equal to the number of attacking creatures to that creature.

−8: You get an emblem with "Whenever you cast a red instant or sorcery spell, copy it twice. You may choose new targets for the copies."

Jaya's Greeting deals 3 damage to target creature. Scry 1.

First strike

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

When Jeering Homunculus enters, you may goad target creature. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Companion — No card in your starting deck has more than one of the same mana symbol in its mana cost. (If this card is your chosen companion, you may put it into your hand from outside the game for as a sorcery.)

: Add . This mana can't be spent to pay generic mana costs.