msem-instigator

Flash
Flying
Whenever you cast a spell during an opponent's turn, create a Weapon token. When you do, you may attach it to another target creature with flying. (It's an Equipment artifact token with equip {2} and “Equipped creature gets +1/+1”.)

When Sofia enters, if it wasn't cast from your hand, it gains lifelink and haste until end of turn.
Whenever Sofia deals combat damage to a player, exile the top card of that player's library face down and look at it. After the current turn has ended, you may cast that spell from exile by paying life equal to its mana value rather than paying its mana cost. If you do, the spell is foretold.
Foretell {B}{R/W} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Gain control of target creature until end of turn. Untap that creature. It gains lifelink and haste until end of turn.

Choose one. If you control four or more creatures, you may choose any number instead.
• Exile target artifact or enchantment.
• Exile target player's graveyard. Stand as One deals 1 damage to each opponent for each card type among cards exiled this way.
• Target creature you control deals damage equal to its power to target creature or planeswalker.

Whenever you cast a creature spell, you may return target nontoken creature you control with a different name to its owner's hand. If you do, copy that spell. (A copy of a creature spell becomes a token.)

When this artifact enters or equipped creature attacks, you may discard a card and note its mana value until end of turn. If you do, draw a card.
Equipped creature gets +X/+1, where X is the greatest mana value noted with this artifact. (If there isn't one, it gets +0/+1.)
Equip {3}

When this creature enters, create two 1/1 red Dwarf creature tokens.
If a card would leave your graveyard, you may sacrifice another creature. If you do, put that card into your hand instead of anywhere else.

Lifelink
When Vel enters, choose up to one other target nonland permanent. If you gained or lost life this turn, exile that permanent until Vel leaves the battlefield.

Whenever a creature you control with toughness 4 or greater attacks, it gains deathtouch until end of turn.
Whenever a creature you control deals combat damage to a player, you may pay 1 life. If you do, draw a card.

Flying, deathtouch
Whenever Yaran enters or attacks, target opponent may pay 3 life. If that player doesn't, they choose a nonland permanent they control. Tap that permanent. You gain control of it. (This effect doesn't end.)

Draw two cards, then you may discard a card. If you do, target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Target creature you control deals damage equal to its toughness to another target creature.

Flash
Lifelink
When this creature enters, counter target spell unless its controller pays {1} or 3 life.

Whenever this creature or another creature you control dies, this creature deals 1 damage to each opponent.

When this creature enters, if you cast it, return target permanent card with mana value 3 or less from your graveyard to the battlefield tapped.
Whenever this creature attacks, you may sacrifice a nonland permanent. If you do, it gets +1/+1 and gains indestructible until end of turn.

At the beginning of combat on your turn, you may exile an instant or sorcery card from your graveyard. If you do, another target Pirate or Rogue gains flying until end of turn.

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Create an X/X green and blue Dryad creature token with ward {2}.

First strike
Whenever this creature attacks, put a geode counter on target land you control. It gains “{1}, {T}, Sacrifice this land: Draw a card and you gain 2 life” for as long as it has a geode counter on it.

Trample
Whenever this creature attacks, you may tap another untapped Dwarf or Elf you control. If you do, create a Treasure token.

Double strike
When this creature enters, mill four cards. Put a creature card with power 2 or less from among the cards milled this way into your hand.

Flash
Flying
Whenever this creature attacks, other creatures you control with flying get +1/+0 until end of turn.

When this creature enters, put a -1/-1 counter on a creature you control.
Whenever you put one or more -1/-1 counters on one or more creatures, surveil 2.

Target attacking or blocking creature gets -2/-2 until end of turn. That creature gets -3/-3 until end of turn instead if you control a Knight or Soldier.

When this creature enters, create two 1/1 white Peasant creature tokens.
Whenever this creature attacks, you may pay {4}{G/W}. If you do, attacking Citizens and Peasants get +1/+1 until end of turn.

Haste
Whenever this creature attacks, destroy up to one other target permanent. If you do, its controller reveals cards from the top of their library until two cards that each share a card type with that card are revealed and exiles those cards. That player puts the exiled cards onto the battlefield, then shuffles.