msem-instigator

{1}, Sacrifice Wayfarer's Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{3}, Sacrifice Wayfarer's Amulet: Search your library for a riddle card, reveal it, put it into your hand, then shuffle.

{T}: Add {C}. Spend this mana only to cast a creature spell.
{T}, Sacrifice Waypoint Stone: Choose target creature card in your graveyard that was put there from the battlefield this turn. Return it to your hand.

Trample, haste
When Weak-Spot Colossus is dealt exactly 1 damage, destroy it.

Whenever you cast a creature spell, if it has a creature type no creature you control has, upgrade Wild Outlander. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• Vigilance
• Trample

Wild Peak enters tapped unless you have 15 or less life.
{T}: Add {R} or {G}.

Flying
{T}, Exile two cards from your graveyard: Add one mana of any color.

{4}, {T}: Look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand.

{T}: Scry 1.
{1}{U}, {T}: Draw a card.

[+2]: Tap target permanent. It doesn't untap during its controller's next untap step.
[–3]: Xenocrata, Reality Breaker deals 3 damage to each creature and each other planeswalker.
[–10]: Draw seven cards. You get an emblem with “Whenever you cast an instant or sorcery spell, untap all permanents you control.”

Choose three. You may choose the same mode more than once.
• Put a +1/+1 counter on up to one target creature you control, then you may have it fight target creature you don't control.
• Target player creates a 2/2 green Lizard creature token.
• You mill four cards and gain 4 life.

Vigilance
{X}{G}, {T}: Ylda, the Wild Soul becomes a copy of target creature you control with mana value X, except it has this ability and vigilance. Activate only as a sorcery.

Whenever you cast a cryptic spell, create a 1/1 white Human creature token with lifelink. (Artifacts, enchantments, and modal spells are cryptic.)

Deathtouch

You draw two cards and you gain 3 life.
Coalesce {5}{W}{U} (You may cast this from your graveyard for {5}{W}{U}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Each opponent loses X life and you gain X life, where X is the number of Illusions you control.
Acquiesce (If you cast this spell from your hand, exile it as it resolves. When one or more creatures you control deal combat damage to an opponent, you may cast this card from exile without paying its mana cost.)

Each player mills four cards.
Coalesce {5}{U}{U} (You may cast this from your graveyard for {5}{U}{U}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
When A Vision Too Vast enters, you may cast target noncreature, nonland card with mana value 4 or less from a graveyard without paying its mana cost.

Whenever you cast a noncreature spell, put a +1/+1 counter on Abjuration Savant. It gains flying until end of turn.
When Abjuration Savant dies, you gain life equal to its toughness.

{2}, Sacrifice Adventurer's Amulet: Search your library for a basic land or Satrapy card, reveal it, put it into your hand, then shuffle.

Look at the top three cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

When Affluent Knight enters, recruit, then recruit again. (To recruit, create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)

Whenever a creature you control dies, put a +1/+1 counter on Agent of Andazir.

Enchant land
When Aid from Martoob enters, recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)
When enchanted land is tapped for mana, add one mana of any color.

When Alchemist's Kit enters, you may return target creature to its owner's hand.
2U, Sacrifice Alchemist's Kit: Draw a card.

Flying
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Noncreature spells you cast cost {X} less to cast, where X is All-Encompassing Akvan's power.