msem-instigator

As long as you control exactly one creature, no more than one creature can attack or block each combat.

Veiled Merfolk can't be blocked by creatures with greater power.
When Veiled Merfolk enters the battlefield, mill a card.

Until end of turn, you may cast creature spells as though they had flash.
Creatures you control can't be the targets of spells or abilities your opponents control this turn.

Menace, lifelink
Once during each of your turns, if you would gain life, you may create a tapped Treasure token instead.

Target creature gets +2/-2 and gains first strike until end of turn.

Equipped creature gets +1/+0.
Equipped creature has deathtouch as long as it's attacking.
Equip {1}

Enchant creature
Enchanted creature has “{T}: Add one mana of any color. Put a +1/+1 counter on this creature.”

Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 2 life.

As an additional cost to cast this spell, exile a multicolored card from your graveyard or pay {2}.
Vibrant Flames deals 3 damage to any target.

Whenever a creature you control dies, you may pay {W}. If you do, you get a glory counter. (You lose glory counters before life. A player with ten or more glory counters wins the game.)
{2}{W}, {T}: Return target creature card from your graveyard to the battlefield. Activate this ability only if you are glorious.

Flying
Whenever you cast a spell from exile, each opponent loses 2 life.

Winnow (Damage dealt to this creature also causes you to lose that much life.)
Whenever Vicious Slasher attacks, target creature gains winnow until end of turn.

Menace
When Vicious Stinger dies, each opponent loses 2 life. You gain life equal to the life lost this way.

{2}{G}, {T}: Another target creature you control gets +2/+2 until end of turn.

Enchant creature
Whenever enchanted creature becomes tapped, Violent Repercussions deals 3 damage to that creature's controller.

Defender
When Virtual Access Point enters the battlefield, create a Function token with “Target player mills four cards.” (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

Target creature you control gains trample until end of turn. Whenever that creature deals damage to a player this turn, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

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.)

At the beginning of each end step, if you've cast a noncreature spell this turn, Void Sculptor deals 1 damage to each opponent.

Voidflare deals 2 damage to any target.
Wanderlust — Voidflare deals 3 damage instead if you control four or more differently named lands.

Voidtouched Nightblade can't block.
Simulacrum (When this creature dies, exile it from your graveyard. If you do, create a token that is a copy of it except it is a colorless 1/1 Crystal Elf Rogue artifact creature.)

Creatures you control gain haste and trample until end of turn.
Draw a card.

Prowess
{1}{R}: Until end of turn, if an instant, sorcery, or Dragon source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead. Activate only once each turn.

WZ-18 Troublemaker enters the battlefield with a +1/+1 counter on it.
When WZ-18 Troublemaker dies, put its counters on target creature you control.
{1}{R}, Exile WZ-18 Troublemaker from your graveyard: It deals 2 damage to each opponent.