msem-instigator

Flying (This creature can't be blocked except by creatures with flying or reach.)
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Flash
When Axom enters, remove up to three counters from target permanent.
{2}{U}: Return Axom to its owner's hand.

Flying
When Sphinx of Riddles enters, secretly choose a card name. You may reveal the chosen name any time.
Whenever a spell an opponent controls with the chosen name resolves, you may draw two cards.

Flying, vigilance
Whenever a land you control enters, create a 2/2 green Ox creature token.
{3}{W}, Tap three untapped Oxen you control: Put a +1/+1 counter on each creature you control.

Target opponent loses 3 life and you gain 3 life. Scry 1.

This spell costs {1} less to cast for each creature card in your graveyard.

Equipment spells you cast cost {1} less to cast.
Equip abilities you activate cost {1} less.

Lifelink
When this creature enters, it seeks secrets. (Give it that Oath Aura. Fulfill it by attacking with it and two or more other creatures to draw a card.)

Winnow (Damage dealt to this creature also causes you to lose that much life.)
Sacrifice Tormented Echo: Target creature gains winnow until end of turn.

When Decrepit Hero dies, create a 2/2 black Soldier creature token.
Fleeting {1}{B} (You may cast this spell for its fleeting cost. If you do, sacrifice it at the beginning of the next end step.)

When Collapsing Frame enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{2}, Sacrifice Collapsing Frame: Draw a card.

Lifelink
Creature and Aura cards with mana value 3 or less in your graveyard have revive {2}{W/B}. ({2}{W/B}, Exile that card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Haste
Heroic — Whenever you cast a spell that targets Akroan Siege Captain, put a +1/+1 counter on each creature you control.

When Soul-Capturing Lantern enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
{1}, {T}: Add one mana of any color.
{6}, {T}, Sacrifice Soul-Capturing Lantern: Exile target nonland permanent. Activate only as a sorcery.

Forgotten Experiment can't be blocked.

When Witch's Invitation enters, you may put a -1/-1 counter on target creature.
{2}, {T}: Tap target creature with a -1/-1 counter on it.

Whenever Blackfeather Cleric enters or attacks, exile target card from a graveyard. Put a +1/+1 counter on Blackfeather Cleric if it was a permanent card. Otherwise, you gain 1 life.
Surpass {5}{B} ({5}{B}: Transform this creature. This costs {1} less to activate for each counter on it. Activate only as a sorcery.)

When Asham's Path enters, you gain 8 life.
{1}{W}{W}: Transform Asham's Path. Activate only if your fealty to Plains is five or greater.

Flying
Each spell costs {2} more to cast except during its controller's turn.

Flying
When Foul Drifter enters, target creature gets -1/-1 until end of turn.

[+2]: Create a 1/1 blue Bird creature token with flying.
[–2]: Reveal the top card of your library. If it's an enchantment or land card, put it onto the battlefield. Otherwise, put it in your hand.
[–7]: Draw seven cards.

{T}: Add {C}.
{1}{C}{C}, {T}: Return target legendary creature to its owner's hand.

As Port Town enters, you may reveal a Plains or Island card from your hand. If you don't, Port Town enters tapped.
{T}: Add {W} or {U}.

If you would draw one or more cards, instead you may draw that many cards plus one, then discard a card.
As long as ten or more cards are in your graveyard, noncreature spells you cast cost {1} less to cast.

Each creature you control assigns combat damage equal to its toughness rather than its power.
Whenever another creature you control enters, creatures you control get +0/+1 until end of turn.