msem-instigator

Enchant creature
Enchanted creature gets +3/-2.

When Humble Shepherd enters, create a 0/1 white Sheep creature token.
{T}, Tap an untapped Sheep you control: Add one mana of any color.

Trample
{1}{B}: Rehis-Dorahn Plowbeast gets +1/+1 until end of turn.

Whenever Sir Roger Wimbledon deals combat damage to a player, you may put an exiled creature card you own into your hand.

{2}{W}: Reappropriate. When you do, choose X, where X is one plus the number of artifact and/or enchantment cards exiled this way. You may choose the same mode more than once. (To reappropriate, exile exactly two cards from your hand and/or graveyard.)
• Exile target creature you own. At the beginning of the next end step, return that card to the battlefield under your control.
• Scry 2.
• Gain 3 life.

Frontline Banneret has first strike as long as it's your turn.
When Frontline Banneret enters, put a +1/+1 counter on another target Knight or Soldier you control.

When this creature enters, target creature seeks secrets. (Give it that Oath Aura. Fulfill it by attacking with it and two or more other creatures to draw a card.)
Whenever you draw a card, each opponent loses 1 life and you gain 1 life.

Equipped creature gets +2/+0. As long as it's a Knight, it has first strike.
Equip {1}{W}

Deathtouch
Whenever another creature named Winter's Whelp you control enters, you draw a card and you lose 1 life.

Tribute 1 (As this creature enters, an opponent of your choice may put a +1/+1 counter on it.)
When Haggard Jackal enters, if tribute wasn't paid, each opponent discards a card.

Flying
Whenever Phantasmal Owl attacks, it gets +1/+1 until end of turn for each other creature you control with flying.

When Dawnhart Ceremony enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Invocation — When you spend four or more mana to cast a spell or activate an ability during your turn, transform Dawnhart Ceremony.

Whenever two or more creatures an opponent controls attack, adjudicate. (Create a white Aura enchantment token with enchant creature and “Sacrifice this token: Untap enchanted creature” attached to target creature.)
Enchanted creatures you control get +0/+2.

Flying
Instant and sorcery spells you cast cost {1} less to cast.
{2}{U}: Target player mills two cards.

Whenever a noncreature permanent enters, Petaldiver deals 1 damage to that permanent's controller.

Enchant creature
As long as you control an untapped creature, enchanted creature can't attack or block.

Aura and Equipment spells you cast cost {1} less to cast.

Hexproof
Each creature you control with a card inscribed onto it has hexproof.

Vigilance
Whenever Kodaichi Bladedancer attacks, target creature gets +2/+2 until end of turn.

Search your library for a basic land card or Desert card, reveal it, put it into your hand, then shuffle.
Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

When Arisen Troops dies, you may destroy target creature that was dealt damage this turn.

Put a +1/+1 counter on up to one target creature you control. That creature can't be blocked this turn.
Draw a card.

Flying
{3}{W}: Scry 2. You gain 2 life.

{T}: Look at the top card of your library. If its mana value is equal to the number of lands you control, you may reveal it and draw a card.
{1}, Return a land you control to its owner's hand: Scry 1.

Crater Burst deals 3 damage to any target. Add {W}{U}{B}{R}{G}. Until end of turn, you don't lose this mana as steps and phases end.