msem-instigator

Deathtouch
Whenever a creature an opponent owns dies, exile the top two cards of that player's library face down. For as long as those cards remain exiled, you may look at them, you may cast them, and you may spend mana as though it were mana of any type to cast them.

When Timecrafter Lafterii enters, choose target permanent with one or more time counters on it, then put two time counters on it or remove two time counters from it.

When Climber's Outfit enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Equipped creature has reach.
Equip {1}

{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.)

Distribute four -1/-1 counters among any number of target creatures.

Flying, menace
When Riftkeeper Entity enters, discard your hand, then draw cards equal to the number of differently named lands you control.
{1}{R}, Discard Riftkeeper Entity: Create a tapped colorless land token named Fading Rift with “{T}, Sacrifice this land: Add one mana of any color.”

Trample
Resolute — At the beginning of combat on your turn, if Helicos Gargantua's power is greater than its base power, double its power until end of turn.

[+1]: Create a 1/1 white Warrior creature token with lifelink. You gain 1 life.
[–2]: Put two +1/+1 counters on target creature. It gains double strike until end of turn.
[–7]: Choose up to three creatures, then destroy the rest.

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}

[+1]: Until your next turn, another target non-Aura permanent becomes a land with “{T}: Add one mana of any color” and loses all other card types and abilities.
[–2]: Create a 1/1 blue Spirit creature token with flying. Draw a card.
[–7]: You get an emblem with “At the beginning of your end step, create a 6/6 green and blue Spirit Warrior creature token with trample named Echo of Lhosei.”

Exile up to three target cards from a single graveyard. You gain 3 life.

Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)
When Merthilios' Escort motivates a creature, that creature gains first strike until end of turn.

Destroy target creature. Recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)

Lifelink
Whenever Painstriker attacks, it deals 2 damage to target creature defending player controls.

As Rhythm of Danaj enters, choose Martoob or Tamaak.
• Martoob — At the beginning of your end step, return a nonland card at random from your graveyard to your hand.
• Tamaak — At the beginning of your end step, you may sacrifice a creature. If you do, draw cards equal to its power.

Slipsand Oasis enters tapped unless you played it from exile.
{T}: Add {W} or {B}.

Warm Blood Chaser has flying and haste as long as you control a Goblin.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Flying
When Skymount Reinforcements enters, put a +1/+1 counter on another target creature.

Flying
Whenever Sinewed Wings deals combat damage to a player, you may discard your hand. If you do, draw a card for each creature with flying you control.

Return an artifact card from your graveyard to your hand. If you can't, you gain 2 life. Repeat this process for battle, creature, enchantment, land, and planeswalker.
Put Variety of Goods on the bottom of its owner's library.

Art of war — At the beginning of your end step, if Sasori Ronin dealt damage to an opponent this turn, it deals 1 damage to any target.

Harness (You may tap a creature you control as you cast this spell. If you do, reduce that spell's mana cost by that creature's power.)
When Darutu's Plow enters, if it was harnessed by an Ox, untap that Ox and attach Darutu's Plow to it.
Equipped creature gets +0/+2 and assigns combat damage equal to its toughness rather than its power.
Equip {3}

As an additional cost to cast this spell, discard a card at random.
Draw three cards.

Trample
Whenever you attack with another creature with power 4 or greater, put a +1/+1 counter on OH-14 Diamond.