msem-instigator

Other creatures you control that entered the battlefield this turn have haste and lifelink.
{T}: You may put a creature card from your hand onto the battlefield.

Choose one —
• When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
• Target creature you control gains double strike until end of turn

Jungle Shrine enters the battlefield tapped.
{T}: Add {R}, {G}, or {W}.

When Cryptic Sentinel enters the battlefield, attach any number of target Auras you control to Cryptic Sentinel.
{G}{W}, Sacrifice an Aura: Tap Cryptic Sentinel. It gains indestructible until end of turn.

Enchant creature
When Heartstrings leaves the battlefield, exile enchanted creature.
Whenever enchanted creature attacks or blocks, exile it at end of combat.

When Churning Sandwurms enters the battlefield, remove all counters from target permanent. Put a +1/+1 counter on Churning Sandwurms for each counter removed this way.

First strike
Prevent all damage that would be dealt to creatures you control by sources with greater mana value.
{2}{W}{W}: Create a 1/1 colorless Construct Actor creature token. Put a vigilance counter on it.

Other creatures you control get +1/+1.
Lands you control enter the battlefield tapped.

As Drop of Envy enters the battlefield, choose a nonland permanent card name.
All cards not on the battlefield, spells, and permanents with the chosen name are legendary.

When Weeping Yaoguai enters the battlefield, create a 1/1 colorless Spirit creature token.
Scavenge {3}{B} ({3}{B}, 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.)

When Dunecrest Pariah enters the battlefield, 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.

Enchant creature
Enchanted creature has deathtouch and menace.
{G}{U}: Enchanted creature gains hexproof and indestructible until end of turn. Tap it.
{R}: Enchanted creature gets +1/+0 until end of turn.

Exile target permanent. Return that card to the battlefield tapped under its owner's control at the beginning of the next end step.

This spell can't be countered.
Target player gains hexproof until end of turn.
Fabled {2}{W}{W} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that player.)

Reason Rots, Rage Remains deals X damage to any target.
Reconstruct {X}{R}{R} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)

When Traversing the Hellwastes enters the battlefield, create a 1/1 green Scout creature token. It gains haste until end of turn.
Whenever a creature enters the battlefield under your control, you may pay 2 life. If you do, draw a card.

Whenever you cast a spell, put a charge counter on Astral Dynamo.
{T}, Remove any number of charge counters from Astral Dynamo: Add that much {C}.

As an additional cost to cast this spell, sacrifice a land.
You may put a land card you own from outside the game onto the battlefield.

Vigilance
Art of war — At the beginning of your end step, if Emperor Kenshiro dealt damage to an opponent this turn, you may put a creature card from your hand onto the battlefield tapped.

Vigilance

Exile the top two cards of your library. Until end of turn, you may play cards exiled this way. If an instant or sorcery spell cast this way would deal damage to a player or planeswalker, it deals double that damage instead.

Dunesea Expanse enters the battlefield tapped unless you control another Desert.
{T}: Add {W} or {U}.

As Timber Range enters the battlefield, you may pay 2 life. If you don't, Timber Range enters the battlefield tapped.
{T}, Sacrifice Timber Range: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

Deathtouch
When Crypt Strider enters the battlefield, create a 1/1 black Skeleton creature token for each creature card in your graveyard.

Put a lifelink counter on target creature you control. It deals damage equal to its power to another target creature or planeswalker.