msem-instigator

{W}, {T}: Target creature doesn't untap during its controller's next untap step.

({T}: Add {W}, {B}, or {G}.)
Majestic Dominion enters tapped.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)
Oslyd Heretic gets +1/+1 as long as you control no other creatures.

{2}, Pay 2 life: Silkwrap Brawler gains indestructible until end of turn.

Choose one —
• Destroy target artifact.
• You gain 4 life.

{T}: Add {C}.
{5}, {T}: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.

Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)
Each creature you control with a +1/+1 counter on it has indestructible.

Destroy target creature with power 4 or greater. (You need a target to cast this spell.)
Tap up to two target creatures.

Menace
Inspired — Whenever Jeering Kit becomes untapped, target Fox you control gets +1/+1 until end of turn.

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.]

Haste
Bloodvenge Berserker doesn't untap during its controller's untap step.
Once each turn, when an opponent is dealt damage by another source you control, you may untap Bloodvenge Berserker.

Flying, prowess
When Chronosphere Sovereign enters, nonbasic permanents target opponent controls don't untap during their controller's next untap step.
When Chronosphere Sovereign dies, it deals 3 damage to each tapped creature you don't control. Destroy each tapped artifact you don't control.

When a creature you control becomes the target of a spell or ability an opponent controls, sacrifice Bestial Harmony. If you do, draw three cards.

[progress 2+]
[progress 5+]
Whenever a creature enters, each opponent loses 1 life.

Skip your draw step.
At the beginning of your end step, discard a card. If you do, create a 4/4 white Angel creature token with flying. If you can't, sacrifice Mark of Hubris.

Creature spells you cast cost {2} less to cast.
Whenever a creature you control enters, if it doesn't have vanishing, put four time counters on it and it gains vanishing.

Survivors you control have menace.

Target creature you control deals damage equal to its power to another target creature.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

({T}: Add {B} or {G}.)
As Eerie Bayou enters, you may pay {1}. If you don't, Eerie Bayou enters tapped.

Whenever Tide Crasher attacks, if you control another Merfolk, tap target creature defending player controls.

Flying
{2}{U}: Until end of turn, target creature has your choice of base power and toughness 1/1 or 4/4 until end of turn. Activate only outside of combat.

{1}{G}: Purge. If you do, put a +1/+1 counter on Purging Watchwarden and you gain 2 life. (To purge, exile two cards that share a type from graveyards. If you do, draw a card.)

Prevent all damage that would be dealt to target attacking or blocking creature this turn.
Inscribed creature gets +1/+1 and has vigilance.
Inscribe {2}{W} ({2}{W}: 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.)

Target creature gets -2/-0 until end of turn. If that creature is tapped, draw a card.

Destroy target creature. Its controller loses 1 life.