msem-instigator

Enchant opponent
Whenever Substack Exploit or another Curse becomes attached to enchanted player, that player loses 1 life and you gain 1 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.”)

This spell costs {1} less to cast and has flash as long as there are four or more card types among cards in your graveyard.
Draw two cards.

Destroy target untapped creature.

At the beginning of each opponent's end step, if no spells controlled by that player resolved this turn, create a 1/1 blue Illusion creature token with “This gets +1/+1 for each other Illusion you control.”

Destroy target tapped creature.

Glitch {3}{W} (Remove one [restriction] for each time you pay the glitch cost.)
Exile target nonland permanent. [Return it to the battlefield under its owner's control at the beginning of the next end step.]

Create X 1/1 white Soldier creature tokens, where X is the number of creatures you don't control.

Switch each creature's power and toughness until end of turn.

Kicker—Sacrifice an artifact. (You may sacrifice an artifact in addition to any other costs as you cast this spell.)
Target creature's owner puts it on the top or bottom of their library. If this spell was kicked, draw a card.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
You may cast this spell as though it had flash if its tithe is paid.
Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

Target opponent reveals their hand. You choose a nonland card from it. Exile that card. You lose 2 life.
Augmented — Then if you've spent {W}{U}{B}{R}{G} to cast spells this turn, you may cast that card without paying its mana cost.

Target creature gets -3/-3 until end of turn. If that creature would die this turn, exile it instead.

Return target creature to its owner's hand. If it's tapped, you may put it into its owner's library second from the top instead.

Target creature can't block this turn.
Inscribe {1}{R} ({1}{R}: Exile this card from your hand 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.)

Choose up to one creature. Return the rest to their owners' hands.

Tap up to two target creatures. Those creatures don't untap during their controllers' next untap steps. Scry 1.

Choose a permanent type. Permanents you control of that type gain hexproof until end of turn.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, permanents you control gain hexproof until end of turn instead.

As an additional cost to cast this spell, put a -1/-1 counter on a creature you control.
Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Enchant creature
Enchanted creature gets -3/-0 and can't block.

As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.

Enchant creature
Enchanted creature has base power and toughness 3/3.

Scry 3, then reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, distribute X +1/+1 counters among any number of target creatures you control, where X is that card's mana value.

Scry X, where X is the highest toughness among creatures you control, then reveal the top card of your library. If it's a creature with mana value X or less, you may put it onto the battlefield.

Counter target creature spell. Create a 2/2 blue Illusion creature token.