msem-instigator

When Kahroba Patrol dies, you may search your library for a basic land or Satrapy card, reveal it, put it into your hand, then shuffle.

Equipped creature gets +2/+0.
Equipped creature has first strike as long as it's attacking.
Equip {2}

Target creature you control deals damage equal to its power to any target. Then put a -1/-1 counter on that creature.

Canid Simulacrum enters with each counter on it from among +1/+1, flying, first strike, deathtouch, lifelink, menace, reach, shield, trample, and vigilance. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)
Whenever a creature you control enters, move two random counters from Canid Simulacrum onto that creature.

Flying, ward {2}
Whenever Faraway Albatross attacks, choose one —
• Faraway Albatross gets +1/+1 until end of turn for each spell you've cast this turn.
• Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

As Enlightened Sigil enters, choose a card type.
Spells you cast of the chosen type cost {1} less to cast.

When Sunset Cliffs Patron enters, you may post a bounty on target creature. (Put a bounty counter on that creature. It has “When this creature dies, each opponent draws a card” as long as it has a bounty counter on it.)

Deathtouch

Choose one —
• Return target creature card from your graveyard to your hand.
• Pay {4}. If you do, return target creature card from your graveyard to the battlefield.

Flying, haste
Whenever you cast an instant or sorcery spell, create a token that's a copy of Stormcall Thunderbird.

Whenever an opponent casts a noncreature spell, put a +1/+1 counter on target creature you control.

Purger of Blights enters with a -1/-1 counter on it.
{2}{B}{G}, {T}, Remove a -1/-1 counter from a creature you control: Draw a card.

Enspirit (As you cast this spell, you may exile a nonenchantment creature you control until this leaves the battlefield or fails to resolve. Reduce this spell's cost by the exiled card's mana value.)
At the beginning of each player's upkeep, they sacrifice a nonenchantment creature. Then if there are no nonenchantment creatures on the battlefield, sacrifice Kantra of Plagues.

Prowess
Whenever you cast an instant or sorcery spell, Tirenan Pyromancer deals 1 damage to each opponent.

At the beginning of each end step, if an opponent lost life this turn, you may put a +1/+1 counter on target creature.
Sacrifice a creature, Sacrifice Blood Cult Covenant: Blood Cult Covenant deals damage equal to the sacrificed creature's power to any target.

{T}: Add {C}.
Tap an untapped creature you control: Kurayami Shrine becomes a 1/1 Spirit creature with deathtouch until end of turn. It's still a land.

Creatures you control get +2/+0 until end of turn. Creatures target player controls gain winnow until end of turn. (Damage dealt to it also causes its controller to lose that much life.)

Menace
When Graygulch Outcast dies, each opponent loses 3 life.

Harmony — Target creature you control gets +1/+0 and gains first strike until end of turn.
When Fellor War-Skald enters, harmonize. (Trigger up to one harmony of a permanent you control.)

Whenever you attack, each opponent loses 3 life unless they discard a card or sacrifice a nonland permanent. Repeat this process once.
Fleeting {B}{R} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

Flying
When Marshcroaker Drake enters, you may return target creature with power 2 or less to its owner's hand.

Whenever Scarhide, Arsenal Crafter attacks, create a token that's a copy of an Equipment attached to Scarhide and attach the token to Scarhide. When you can't, arm it. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Flying
{1}{W}: Target creature with a +1/+1 counter on it gains flying until end of turn.

Trample
Whenever you attack, target creature gains first strike until end of turn. If you control a Dwarf and an Elf, that creature gains double strike until end of turn instead.

Prismatic — Whenever you cast a multicolored spell, if you cast it from your hand, look at the top four cards of your library. You may cast a multicolored card that's different colors and costs less from among them without paying its mana cost. Put the rest on the bottom of your library in any order.