msem-instigator

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

Search your library for a basic land card, reveal it, put it into your hand, then shuffle. Mill three cards.

Shuffle any number of cards from your graveyard into your library.
Scry 1, then draw a card.

Imitator of Drakes has flying as long as it has a +1/+1 counter on it.
{2}{U}: Put a +1/+1 counter on Imitator of Drakes.

At the beginning of each opponent's end step, that player gets a poison counter unless damage was dealt this turn.

Flying
Whenever Immaculate Clouddasher attacks, up to three target creatures gain flying until end of turn.

Immolated Grave enters tapped.
{T}: Add {R}.
{2/R}{2/R}: Immolated Grave becomes a 3/1 red Elemental creature with first strike until end of turn. It's still a land.

Enchant creature
Enchanted creature gets +3/+3 and has flying.

Enchant creature
Enchanted creature gets +2/+2 and has trample and indestructible.

Indestructible
Immortal Child can't block creatures with greater power.

Hexproof, indestructible
You don't lose the game for having 0 or less life.
For each 1 life you would lose while you have 0 or less life, instead put a -1/-1 counter on a creature you control with toughness 1 or greater.

Enchant creature
When Impassioned Craze enters, draw a card.
Enchanted creature has “{R}: This creature gets +1/+0 until end of turn.”

Draw a card.
Civilized — Instead draw two cards if you control an artifact, a creature, and an enchantment.

As Imperial Barracks enters, you may reveal a Mountain or Plains card from your hand. If you don't, Imperial Barracks enters tapped.
{T}: Add {R} or {W}.

{T}: Add {C}.
{4}, {T}, Put a -1/-1 counter on a creature you control: Draw a card.

Exile target artifact or enchantment. Its controller creates a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Create X 1/1 colorless Spirit creature tokens.
5 | Put a +1/+1 counter on each creature you control.

First strike
Art of war — At the beginning of your end step, if Imperial Kensai dealt damage to an opponent this turn, you may pay 1 life. If you do, put a +1/+1 counter on Imperial Kensai.

Imperial Marketplace enters with a charge counter on it.
{T}: Add {C}.
{T}, Remove a charge counter from Imperial Marketplace: Put a +1/+1 counter on target creature you control.

{T}: Add {C}. Activate only if you have less life and control fewer creatures than each opponent.

{T}: Add {C}.
{1}, Discard Imperial Port: Search your library for a basic land card, reveal it, and put it into your hand. Then shuffle.

As long as Imperial Proclaimer is on the battlefield, it has all names of nonlegendary creature cards in addition to its name.

At the beginning of each upkeep you may pay {W}. If you do, tap target creature.

Enchant creature
Enchanted creature can block any number of creatures each combat.

{U}, Sacrifice Imperious Nixie: Return target creature to its owner's hand.