msem-instigator

At the beginning of your upkeep, you may create a Treasure token. If you do, an opponent of your choice creates a tapped Treasure token.

Equipped creature gets +1/+1.
At the beginning of your end step, if you don't control a creature, create a 1/1 white Human creature token and attach Seeking Sword to it.
Equip {1}

{4}{R}: Blind Tunneler gets +3/+0 until end of turn.

When Journey through Uwaito enters, draw a card, then choose a creature card name.
Whenever a creature you control with the chosen name dies, each opponent discards a card.

Investigate, then target creature gets -1/-1 until end of turn for each Clue you control. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

When Wildborn Merchant enters, each player discards their hand, then draws X cards, where X is the number of Nobles you control.

Reach
You may cast a copy of Primal Echo from your graveyard by exiling it and paying {2} in addition to its other costs. (The copy enters as a token.)

When Woopip Sproutling enters, germinate. (Put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)

Destroy target creature with no counters on it and no permanents attached to it.

Deathtouch
Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)

Whenever one or more creatures you control deal damage to a player, put a charge counter on Lake of Rage.
{T}: Add {C}.
{T}, Remove a charge counter from Lake of Rage: Add one mana of any color.

Reach, trample
If a +1/+1 counter would be put on another creature you control, instead put a +1/+1 counter on that creature and on Avatar of the Natural.

Look at the top six cards of your library. Put one of them into your hand and the rest into your graveyard.

Enchant creature
When this enchantment enters, surveil 2.
Enchanted creature gets +2/+2 and has lifelink.

Whenever a nontoken creature you control dies, create a 1/1 black Skeleton creature token.

Target creature gets -4/-0 until end of turn. If you control two or more tokens, draw a card.

Vigilance, reach
When this creature transforms into Towering Alpha, return target card from your graveyard to your hand.
At the beginning of your end step, if Towering Alpha didn't attack this turn, transform it.

Haste
When Horse Thief enters, you may gain control of target creature or Steed until end of turn. It gains haste until end of turn. If it's a Steed, attach it to Horse Thief.

Haste
Crew 1 (Tap any number of creatures you control with total power 1 or greater: This Ship Vehicle becomes an artifact creature until end of turn.)

When Stillmarsh Brinecatcher enters, return another target nonland permanent to its owner's hand.
At the beginning of your end step, if you control a permanent with mana value 5 or greater, you may sacrifice Stillmarsh Brinecatcher. If you do, draw a card and create a 3/2 colorless Horror creature token.

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.)

Parish Paragon gets +1/+1 for each creature you control.
All damage that would be dealt to other creatures you control not named Parish Paragon is dealt to Parish Paragon instead.

Look at the top three cards of your library. You may put any number of them into your graveyard. Draw a card.

Flying
Whenever you gain life, each opponent loses 1 life.