msem-instigator

Haste
The first instant or sorcery spell you cast each turn costs {1} less to cast.
{R}, {T}, Sacrifice Hellspark Prankster: Change the target of target spell with a single target.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
{1}{W}, Sacrifice a creature or enchantment: Scry 1, then draw a card. Activate only if Trauma Surgeon has a +1/+1 counter on it.

Exile two target cards from your graveyard. If they share a card type, draw a card. (Then exile this card. You may cast the creature later from exile.)

Augmented — At the beginning of each end step, if you've spent {W}{U}{B}{R}{G} to cast spells this turn, put a +1/+1 counter on Defected Explorer.

Return target creature card from your graveyard to the battlefield.

Invigorate 1, then untap each creature you control with a +1/+1 counter on it. (Choose a creature with the least power among creatures you control and put a +1/+1 counter on it.)

At the beginning of your upkeep, put a +1/+1 counter on Kaur's Gift, then you gain life and add {G} equal to its power. You don't lose that mana as steps, phases, and turns end.
When Kaur's Gift dies, you gain life and add {G} equal to its power. You don't lose that mana as steps, phases, and turns end.

Primal {1}{B}{B} (During your turn, you may cast this spell for {1}{B}{B} instead of playing a land.)
Flying
Whenever a creature deals damage to Divine Butcher, destroy that creature. You gain life equal to that creature's toughness.

Escalate {R} (Pay this cost for each mode chosen beyond the first.)
Choose one or both —
• Untap all creatures you control.
• Take an extra turn after this one. Skip the untap step of that turn. Exile Inspire Actuality.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Damning Flames deals 3 damage to any target. If this spell's tithe was paid, it deals 6 damage instead.

Destroy target artifact or enchantment. Scry 2.

You have no maximum hand size.
At the beginning of your upkeep, draw a card.
At the beginning of your end step, you lose 1 life for each card in your hand.

You draw a card and you lose 1 life.
Whenever you cast a spell from anywhere other than your hand, you may pay 1 life. If you do, return Desolate Advance from your graveyard to your hand.

Prowess
Whenever you cast a noncreature spell, Noxan Pilgrim gains lifelink until end of turn.

{T}: Add {C}.
{T}, Sacrifice Shiftscape Canyon: Choose a basic land type other than Plains. Create a colorless land token that's a Plains and the chosen basic land type. Activate only during your upkeep.

Enchant creature
Enchanted creature can't attack.
Civilized — Enchanted creature can't block and its activated abilities can't be activated if you control an artifact, a creature, and an enchantment.

Flash
Harmony — Another target creature gets +1/+0 and gains indestructible until end of turn.
When Siamang Tale-Singer enters, harmonize. (Trigger up to one harmony of a permanent you control.)

Equipped creature gets +1/+0 and has first strike.
As long as another artifact named Dueling Blades is attached to a creature you control, equipped creature has double strike.
Equip {1}

When Rotfeeder Slime dies, you gain 2 life for each creature card in your graveyard.

Creatures you control get +1/+1 and gain trample until end of turn.
Fuse (You may cast one or both halves of this card from your hand.)

Enchant creature
Enchanted creature must be blocked if able.

Create a 1/1 blue Bird creature token with flying. (Cast a copy of this spell once while this creature is on the battlefield.)

Up to X target creatures gain winnow until end of turn. (Damage dealt to a creature with winnow also causes its controller to lose that much life.)
Rain of Ruin deals 2 damage to each creature.

Flying
When Aspect of Divinity dies, create a 0/2 red Egg creature token with “When this creature dies, return target creature card with mana value 2 or less from your graveyard to the battlefield.”

As an additional cost to cast this spell, exile two permanent cards from your graveyard.
You may cast Adiran Survivors from your graveyard.