msem-instigator

First strike
When Imperial Dragoon enters, target creature gets +2/+0 until end of turn.

Trample
If a creature in Imperial Guardian's pack would deal damage to a permanent or player, it deals twice that much damage instead. (Two or more creatures you control with equal power are in a pack.)

Equipped creature gets +3/+2.
Equip {3}

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.

Mill four cards, then return a noncreature card from your graveyard to your hand.

Trample
Art of war — At the beginning of your end step, if Imperial Legion dealt damage to an opponent this turn, put two +1/+1 counters on it.

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

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

Draw a card. Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Destroy target nonbasic land.

Spirited (When this enters, you may activate one of its activated abilities without paying its cost.)
{2}, Sacrifice Imperial Silks: Draw a card.
{2}, Sacrifice Imperial Silks: You gain 3 life.

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

Enchant land you don't control
Whenever enchanted land becomes tapped, you may draw a card.

Flash
You may cast this spell from your graveyard, but not from anywhere else. When you do, destroy target permanent.

Whenever an opponent casts a spell during your turn or finishes drawing cards during your turn, you gain 1 life and create a Treasure token.
Sacrifice two Treasures: Draw a card.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
{1}, Sacrifice another creature: Imperious Aristocrat gains indestructible until end of turn. If you're in a renaissance, each opponent loses 2 life and you gain 2 life.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

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

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

Reach
Imperious Ram can't be blocked by more than one creature.

Trample
Madness {2}{G} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

When Impervious Fortifications enters, you gain life equal to the number of creatures you control.
Creatures can't attack you or a planeswalker you control unless their controller pays {2} for each creature they control that's attacking you.

Whenever Impetuous Impetus deals combat damage to a player, you may sacrifice a land. If you do, Impetuous Impetus deals 3 damage to that player.

Enchant creature
When Impish Delights enters, draw a card.
Enchanted creature gets +2/+0.

{1}, Sacrifice a creature: Put a +1/+1 counter on Implant Scavenger and move any +1/+1 counters from the sacrificed creature onto it. It gains menace until end of turn.