msem-instigator

Feed to the Pigs deals X damage to any target. You gain X life.

As The Usurper's Final Rest enters, choose a card name.
Spells with the chosen name can't be cast.
If a card with the chosen name would enter the battlefield or be put into a graveyard from anywhere, exile it instead.

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)
Whenever a creature you control becomes renowned, you gain 2 life.

Counter target spell that targets you or a permanent you control.
Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Enchant player
When Curse of Scuttling Thoughts enters, create a 0/3 blue Crab creature token with “{T}: Target player mills a card.”
If enchanted player would mill one or more cards, they mill twice that many cards instead.

Draw three cards, then discard a card.

{1}{U}: Twilight Privateer voyages. (If it isn't blocking or targeted by another spell or ability, it phases out.)
Whenever Twilight Privateer phases in, up to one other target creature voyages.

{B}: Treacherous Shade gets +1/+1 until end of turn.
{1}{B}{B}: Treacherous Shade gets +3/+3 until end of turn.

Flying
Lands you control have “{T}: Add {R}{R}. This land deals 2 damage to you.”
{R}{R}{R}{R}{R}{R}: Shuffle your library, then exile the top three cards. You may cast one of them without paying its mana cost.

Equipped creature gets +1/+1 and has haste.
Whenever a creature you control enters, if it was cast from exile, you may attach Blade of the Valiant to it.
Equip {2}

{T}, Tap two other untapped creatures you control: Add two mana of any one color.

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Draw three cards.
5 | Add {W}{U}{B}{R}{G}. You can cast only one more spell this turn.

Divine Conspiracy has flash as long as an Angel, Demon, Faerie, or Spirit you controlled died this turn.
Choose up to two target nonland permanent cards in your graveyard that were put there from the battlefield this turn. Return them to the battlefield.

Enchant creature
Enchanted creature gets +2/+2.
When enchanted creature dies, return it to the battlefield under its owner's control.

First strike, menace
When Zhargetan Reclaimer enters, put any number of cards your opponents own from exile into their owners' graveyards. If three or more cards were put into graveyards this way, create two 1/1 Scout creature tokens that are all colors.

Flying
Whenever you cast a cryptic spell, Guardian of Mysteries becomes a 4/4 Sphinx creature in addition to its other types until end of turn. (Artifacts, enchantments, and modal spells are cryptic.)
{1}, {T}: Scry 2.

Flying
When Ghastly Spirit enters, mill four cards, then return a nonland card from your graveyard to your hand.

You may have Crossroads Town enter tapped. If you do, search your library for a basic land card, reveal it, then shuffle and put that card on top.
{T}: Add {C}.

When Hardened Explorer enters, choose one —
• Destroy target artifact.
• Put a +1/+1 counter on Hardened Explorer. It gains haste.

Destroy target creature. If you control a Wizard, put up to one target creature card from your graveyard on top of your library.

Flying
Other Vampire creatures you control get +1/+0 and have menace.

Flash
Enchant permanent or spell
Whenever enchanted permanent or spell deals damage to a creature, return that creature to its owner's hand (if it's still on the battlefield).

When this creature enters, you may sacrifice a creature. If you do, you draw a card and you lose 1 life.
Arise {2}{B} ({2}{B}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

Vigilance
Creatures you control with power 1 or less can't be blocked by creatures with power 3 or greater.
Resilience (When this dies, exile it, then create a 1/1 token copy without resilience.)