msem-instigator

This creature can't be blocked.
{2}{U}, Sacrifice this creature: Tap target creature and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Trample
At the beginning of your upkeep, if your fealty to Forests is five or greater, transform Hand of the Harvest. (Each Forest you control counts towards your fealty to Forests.)

Target creature gains indestructible until end of turn. Untap it.
Draw a card.

Menace, haste

No more than one creature can attack each combat.
No more than one creature can block each combat.

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.

Creatures can't attack you unless their controller pays {2} for each of those creatures.
Mirage {1}{U} (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

When Bellani Mystic enters, target player mills two cards.

Whenever a land becomes tapped, its controller sacrifices it and creates a Treasure token.

Deathtouch
Sacrifice a creature: Target player mills two cards.

Look at target player's hand and the top card of that player's library. Look at the top four cards of your library, then put them back in any order.

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Battle of Principles deals X damage to any target.
5 | When a creature or planeswalker dealt damage this way dies this turn, return it to the battlefield under your control.

Whenever equipped creature attacks, exile the top card of your library. Equipped creature gets +X/+0 until end of turn, where X is the mana value of that card. Until end of turn, you may play that card.
Equip {2}

Create a token that's a copy of target creature.
Metamorph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up and cast it at any time for its metamorph cost.)

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It loses any Roles you don't control.)
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Flying
Spells your opponents cast cost an additional 2 life to cast.

[+1]: Until end of turn, All-Enduring Mafua becomes a 5/5 Cat Warrior creature with lifelink and indestructible. (He doesn't lose loyalty while he's not a planeswalker.)
[–2]: Exile target creature.
[–X]: Return each creature card with mana value X from your graveyard to your hand.

Archive 5 (As this enters, shuffle the top five cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever you draw a card from the archived library, until end of turn, you may spend mana as though it were mana of any color to cast spells with the same name as that card and spells with that name can't be countered.

First strike
When Imperial Dragoon enters, target creature gets +2/+0 until end of turn.

Target creature you control deals damage equal to its power to up to one other target creature. Then if you've cast another spell this turn, the creature you control gains double strike until end of turn.

Lifelink
At the beginning of each end step, if you gained life this turn, you may pay {W/B}. If you do, create a 1/1 white Spirit creature token with flying.

Bound by Nature enters with X nature counters on it.
You can't cast nonpermanent spells.
Creatures you control get +1/+1 for each nature counter on Bound by Nature and have “{T}: Add {G}.”

Flying
Whenever Spellgorger Elemental attacks, discard a card at random. If an instant or sorcery card is discarded this way, Spellgorger Elemental deals 3 damage to any target. Otherwise, draw a card.

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever you attack, add a quest counter.
1, 2 — Untap target creature or land you control.
3 — Create two 2/2 green Wolf creature tokens.
​

{T}, Discard a card: Draw a card.
{1}, {T}, Discard a card: Scry 2, then draw a card.
{4}, {T}, Discard a card: Search your library for a card, put it into your hand, then shuffle.