msem-instigator

Fertile Steppe enters tapped unless you have 15 or less life.
{T}: Add {G} or {W}.

When Sword of the Heavens enters, attach it to target creature you control.
Equipped creature gets +2/+2 and has flying, vigilance, and “Whenever this creature attacks, you may search your library and/or graveyard for an Aura or Equipment card, reveal it, put it into your hand, then shuffle.”
Equip {3}

For each player, exile target creature or planeswalker they control.

Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
Draw a card.

Whenever Crain's Crony enters or attacks, reveal the top card of your library and put it into your hand. You lose life equal to that card's mana value.
At the beginning of each end step, if you didn't lose life this turn, you lose the game.

Sanguine Oracle enters tapped.
{4}{B}, {T}, Sacrifice Sanguine Oracle: Target player discards two cards. Activate only as a sorcery.

Counter target spell. If that spell is countered this way, its owner puts it on the top or bottom of their library instead of into their graveyard.
Each player draws a card.

Reach
When a creature you control scavenges Huolin Ranger, put a reach counter on that creature.
Scavenge {3}{G} ({3}{G}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Flash
When this enchantment enters, if you cast it, you may return target spell or nonland permanent to its owner's hand.
Whenever you cast your first spell during each opponent's turn, create a 1/1 white and blue Bird creature token with flying.

When Keeper of Dark Shadows enters, if it's not a token, target opponent reveals their hand. You may choose a creature card from it. Create a token that's a copy of that card, except it's a colorless Spirit.

({T}: Add {G}.)
Wanderlust — Otherworldly Forest enters tapped unless you control four or more other differently named lands.
{1}, {T}: Add one mana of any color.

Menace, haste
At the beginning of combat on your turn, gain control of up to two target noncreature, nonland permanents your opponents control until end of turn. Untap those permanents. You may attach any number of Equipment among them to creatures you control until end of turn. (They unattach at end of turn.)

When Paths Untaken enters, draw a card.
If a spell or ability would have you choose a card name, you may choose two card names instead. (It follows the same restrictions. Effects of that spell or ability apply for each name chosen for it.)

Deathtouch
Artifacts and creatures your opponents control have “At the beginning of your upkeep, you lose 1 life unless you tap this permanent and have an opponent gain control of it.”

When Spirit of Autumn enters, nourish X, where X is the number of creatures you control. (To nourish X, either put X +1/+1 counters on this creature or create X 1/1 white Citizen creature tokens.)

Enchant creature
As long as it's your turn, enchanted creature has indestructible.
Whenever enchanted creature attacks, it deals damage equal to its toughness to any target.

Flying

Target creature gets +2/+2 until end of turn. You gain 2 life.

Flying
When Glenach enters, put three -1/-1 counters on a creature you control.
When Glenach leaves the battlefield, return target non-Insect permanent card from your graveyard to your hand.

Pungent Beetle enters with a +1/+1 counter on it for each creature you controlled that died this turn.

Any number of target creatures you control each fight target creature with power 3 or greater. (All fight damage happens simultaneously.)

Whenever Power of Redemption attacks, choose one —
• Remove all -1/-1 counters from all creatures you control.
• Untap all creatures you control.

When Ayala's Blessing enters, put a +1/+1 counter on up to two target creatures.
Whenever an embattled creature you control dies, you may return it to its owner's hand. (A creature is embattled if it has a counter on it or has a permanent you control attached to it.)

At the beginning of your end step, judge target creature you control. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)

Each opponent sacrifices a creature that dealt damage this turn. You gain 2 life, then abound. (To abound, you may cast a spell that costs less than this from your hand without paying its mana cost.)