msem-instigator

Enchant player
Enchanted player's maximum hand size is reduced by two.

Target player sacrifices an enchantment. You gain 4 life.

Create a 1/1 white Spirit creature token with flying. (Then exile this card. You may cast the artifact later from exile.)

Flying, first strike

Gain control of target nonland permanent until end of turn. Untap it. It gains haste until end of turn.

{T}, Sacrifice an artifact or enchantment: Draw a card.

Enchant creature
Embody (Enchanted creature is a copy of this card except for its types.)
As long as Legend of the Weary is tapped, creatures you don't control get -1/-1.

Eureka! (At the beginning of each end step, you get a research counter if you cast a spell this turn. Then if you have eight or more research counters, remove them and create a Masterpiece token of your choice.)
{T}: Draw a card, then discard a card.

You lose 1 life and exile the top card of your library. You may repeat this process any number of times. Then put up to two cards exiled this way into your hand.
Coalesce {5}{B}{B} (You may cast this from your graveyard for {5}{B}{B}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Black Hole Musings's power is equal to the number of cards in exile.

Equipped creature gets +1/+1.
Equipped creature has “When this creature dies, if it's not a token, create a token that's a copy of it except it's a colorless Spirit Dragon with flying in addition to its other abilities.”
Equip {2}

Defender
Civilized — {T}: Edge of the Empires deals 1 damage to each opponent. Activate only if you control an artifact, a creature, and an enchantment.

Creatures you control get +2/+2 until end of turn.

At the beginning of your postcombat main phases, add an amount of {R} equal to the number of creatures you controlled that dealt combat damage to a player or planeswalker this turn.

When Chigau, the Red Market enters, draw a card, then choose a creature card name.
Once each turn, you may cast a creature spell with the chosen name from your graveyard.

Pressure—{4}{U}{B}, Sacrifice two creatures. (You may cast this spell for its pressure cost if seven or more cards are in your graveyard.)
Whenever Oryxyth enters or attacks, create an X/X black Horror creature token, where X is the number of cards in your graveyard.
{U}{B}, Sacrifice another creature: Gain control of target creature with power less than the sacrificed creature's power.

{T}: Add {C}.

Trample
When Descendant of Shimaru enters, create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)

{3}{W}{W}: Detain target nonland permanent. (Until your next turn, that permanent can't attack or block and its activated abilities can't be activated.)

First strike
Whenever Keeper of the Banner deals combat damage to a player, draw two cards, then discard two cards.

Whenever you cast an instant or sorcery spell, you may attach Stormbreaker's Edge to target creature you control.
Equipped creature gets +3/+0.
Equip {3}

Lifelink
When Ravenous Tarwurm enters, you may have it consume. When you do, destroy target creature with toughness 3 or less and you gain 3 life. (To consume, sacrifice another creature or exile a creature card from your graveyard.)

Choose one —
• Create two 1/1 blue Tentacle creature tokens.
• Untap target creature. It gets +2/+4 until end of turn.

Legacy (You may play this side of this card only from your graveyard. Exile it if it would leave the battlefield or not resolve.)
At the beginning of your upkeep, you may return a creature card from your graveyard to your hand. If you do, you gain 2 life.

Haste
Whenever Shala's Phantasm attacks, you may sacrifice a creature. If you do, Shala's Phantasm deals 3 damage to any target.

When Mirror Paradigm enters, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)
Once each turn, when a sorcery card is put into your graveyard from anywhere, you may copy it. If you do, you may cast the copy. (You still pay its costs.)