msem-instigator

When Oracle of Edicts enters, adjudicate. (Create a white Aura enchantment token with enchant creature and “Sacrifice this token: Untap enchanted creature” attached to target creature.)
Whenever an Aura you control enters, scry 1.

Harness (You may tap a creature you control as you cast this spell. If you do, reduce this spell's mana cost by that creature's power.)
Overheat deals X damage to any target.

Each instant and sorcery card you own that isn't on the battlefield has inscribe. The inscribe cost is equal to its mana cost. (Exile that spell card inscribed on a creature you control. Whenever that creature attacks, its controller may cast a copy of the inscribed card without paying its mana cost. Inscribe only as a sorcery.)

When Paleontologist enters, search your library for up to two artifact and/or Skeleton cards and put them into your graveyard, then shuffle.

Reach
Whenever Palm Walker or another creature you control enters, you gain 2 life.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever a +1/+1 counter is put on a creature you control, tap target creature you don't control.

Defender
Whenever Patient Cocoon is dealt damage, create a 1/1 green Insect creature token.

Whenever a creature attacks you or a planeswalker you control, Pitfall Pangolin gets +1/+0 until end of turn.

Whenever Poised Koi attacks or blocks, look at the top two cards of your library, put any of them into your graveyard, then the rest back on top in any order.

Target creature gains deathtouch until end of turn. If that creature is an Insect, it gains first strike until end of turn.

Flash
Enchant creature you control
Enchanted creature gets +3/+3 and has lifelink and indestructible.

({T}: Add {R} or {G}.)
Practice Range enters tapped unless you control two or more basic lands.

Target creature you control gains double strike until end of turn. That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Haste
At the beginning of your end step, return Preying Mantis to its owner's hand.

Flash
When Prismatic Champion enters, create a white Aura enchantment token named Sunward attached to target creature. The token has enchant creature and “Enchanted creature has protection from creatures.”

Whenever another nontoken creature you control enters, if it has a different name than each other creature you control and card in your graveyard, you may create a token that's a copy of it.

Whenever equipped creature deals combat damage to a player, put a +1/+1 counter on it, then proliferate. (You choose any number of permanents and/or players with counters on them, then give each another kind of a counter already there.)
Equip {2}

Look at target player's hand. That player discards a card.
{2}{B}{B}, Exile Psychic Assault from your graveyard: Choose a card name. Target player reveals their hand and discards all cards with that name. Activate only as a sorcery.

Target opponent discards two cards. You gain 2 life.

This spell costs {1} less to cast if it targets a creature with power 3 or less.
Destroy target attacking or blocking creature.

Flying, deathtouch
Whenever Queen of the Hive deals combat damage to a player, create a 1/1 green Insect creature token for each Insect you control.

Equipped creature gets +2/+0.
Equipped creature has first strike as long as it's attacking.
Equip {2}

Counter target spell. If a noncreature spell is countered this way, scry 2.

Flying
When Rallywing enters, creatures you control get +1/+1 until end of turn.

Create two 1/1 colorless Servo artifact creature tokens.
Leitmotif (If you cast this spell from your hand, exile it as it resolves. When you next cast a spell that shares a color with this card, you may cast this from exile without paying its mana cost.)