msem-instigator

Reveal the top five cards of your library. Put up to one land card revealed this way onto the battlefield tapped and a creature card revealed this way into your hand. Put the rest on the bottom of your library in a random order.

Vigilance
Whenever you make first contact, put a +1/+1 counter on Volarian Sightseer. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)

Create three 1/1 green Insect creature tokens, then put a +1/+1 counter on each of them.

When Dragonheart Seer dies, you may exile it. If you do, return up to two target instant and/or sorcery cards from your graveyard to your hand.

Flying
Embellish {4}{U} (If you cast this spell for {4}{U}, create a 1/1 blue Thopter artifact creature token with flying when it enters.)

Enchant creature
Enchanted creature gets +2/+2 and can't be blocked as long as defending player controls a Desert.

Crafter's Mistake deals 1 damage to target player or planeswalker. That player or that planeswalker's controller sacrifices an artifact.

Ward {3}
Whenever Operative SPORTY attacks or you cast a blue or black spell, put a +1/+1 counter on Operative SPORTY.

Deathtouch

I, II — Each opponent loses 2 life and you gain 2 life.
Discovery — At the beginning of your end step, you draw a card and you lose 2 life.

Substack Ports enters tapped.
{T}: Add {U} or {B}.
{U}{B}, {T}, Sacrifice Substack Ports: Conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

Untap up to two permanents you control during each other player's untap step.

Flash
Enchant player
When Curse of Doubt enters, counter target spell enchanted player controls unless they pay {2}.
{4}{U}: Enchanted player mills three cards.

{3}{R}: Target creature can't block this turn.

Create a 2/2 black Horror creature token.
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.”)

{B}: Revenant Shade gets +1/+1 until end of turn.

Creatures with power less than or equal to the number of creatures in Wildershrine Elder's pack can't block it. (Two or more creatures you control with equal power are in a pack.)

At the beginning of your upkeep, scry 1.
At the beginning of combat on your turn, if you cast both a creature spell and a noncreature spell this turn, you may have Glintwing Nest become a 4/4 Elemental Bird creature with flying in addition to its other types until end of turn.

Tsubasa's Redoubt enters tapped.
When Tsubasa's Redoubt enters, you may mill two cards.
{T}: Add {W} or {B}.

Foretell {3}{W} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
This spell's foretell cost costs {3} less to pay if you have 5 or less life.
You gain 10 life.

At the beginning of your end step, you get a perfection counter. Create a token that's a copy of up to one other target creature you control, then exile that token unless you have six or more perfection counters.

Creatures you control get +2/+0 until end of turn. Creatures target player controls gain winnow until end of turn. (Damage dealt to it also causes its controller to lose that much life.)

Whenever you cast an instant or sorcery spell from your hand, put that card onto the battlefield face down as a 2/2 creature instead of putting it into your graveyard as it resolves.
Whenever a face-down creature you control deals combat damage to an opponent, you may exile it. If you do, you may cast it without paying its mana cost.

Enchant creature
Enchanted creature has lifelink and protection from its colors. This effect doesn't remove Shimmerhold. (This permanent can't be targeted, dealt damage, enchanted, or equipped by anything its color.)