msem-instigator

{T}: Add {C}.
{T}: Choose a color from among permanents you control. Add one mana of that color.

Target opponent reveals their hand. You choose a creature or sorcery card from it and exile that card.

({T}: Add {W} or {U}.)
Whenever Sedate Tundra becomes tapped, you lose 1 life unless you control two or more basic lands.

Indestructible
As long as your devotion to white is less than five, Heliod isn't a creature.
If an effect would create one or more kinds of tokens under your control, it creates an additional token of each kind.
{3}{W}: Put a +1/+1 counter on each other creature you control. Activate only as a sorcery.

Reveal cards from the top of your library until you reveal a creature card and a land card. Put those cards into your hand and the rest on the bottom of your library in a random order.
Concord — If there are four or more card types among permanents you control, create two Treasure tokens.

Enchant creature
Enchanted creature is a blue Shaman with base power and toughness 0/2, has “{2}, {T}: Scry 1,” and loses all other abilities.

Whenever an opponent attacks, exile Last Offer. If you do, target opponent sacrifices an attacking creature and you return another enchantment card from your graveyard to your hand.

Reach, deathtouch
Whenever you cast a spell from your graveyard, you may have Raven-Cursed Dominik fight target creature.

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.
Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Vigilance
When Cai Lan enters, exile target nonland permanent an opponent controls with mana value 2 or less. Its controller creates an Idol token.

Melodae, the Favored can't be blocked by black creatures.
If Melodae would be destroyed, instead sacrifice a creature and Melodae gains indestructible until end of turn.

Barren Boneyard enters tapped.
{T}: Add {B}.
{2/B}{2/B}: Barren Boneyard becomes a 2/3 black Elemental creature with deathtouch until end of turn. It's still a land.

When Press-Gang Recruiter enters, create a Treasure token.
{5}, {T}, Sacrifice an artifact: Gain control of target artifact or creature until end of turn. Untap that permanent. It gains haste until end of turn. Activate only as a sorcery.

Trample
When Hunted Sprareos dies, create a 6/6 green Wurm creature token with trample.

Counter target spell with mana value 3 or less.

Equipped creature gets +1/+1.
As long as equipped creature is multicolored, it gets an additional +1/+1.
Equip {1}

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.

Whenever Inishtu, Desert Healer enters or attacks, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
At the beginning of your upkeep, if seven or more cards are in your graveyard, you may transform Inishtu.

Assault {1}{G} (Whenever this attacks, if it has no +1/+1 counters on it, you may pay its assault cost to put a +1/+1 counter on it.)
When Caprin Outlander assaults, you gain 3 life.

When Ralezza, Weaver of Okthuros enters, you may put target Aura card that could enchant it from a graveyard onto the battlefield attached to Ralezza.
{1}{W}, Sacrifice an Aura: Ralezza gains indestructible until end of turn.

At the beginning of your upkeep, you may pay {B}. If you do, return a Wizard card from your graveyard to your hand.

Encourage ({T}: Another target creature you control gets +1/+1 until end of turn. Encourage only as a sorcery.)
Whenever a creature deals combat damage to a player, if it was encouraged by Unbeholden Navigator this turn, draw a card.

Counter target spell with no subtypes. Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

When Dunecrest Pariah enters, you may search your library for a basic land or Desert card, reveal it, put it into your hand, then shuffle.
{T}, Sacrifice Dunecrest Pariah: You may put a land card from your hand onto the battlefield tapped.

Starting with you, each player may sacrifice a creature. Each player that doesn't loses life equal to the total power of creatures sacrificed this way.