msem-instigator

When Militia Surgeon enters the battlefield, you gain 2 life.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

When Mining Rover Manager enters the battlefield, create a 1/1 colorless Servo artifact creature token.

Exile target creature. (Then exile this card. You may cast the creature later from exile.)

Equipped creature gets +2/+2 and has ward {2}.
Whenever a creature enters the battlefield under your control, if you cast it from exile, you may attach Minstrel's Armor to it.
Equip {2}

{W}, {T}: Remove target creature you control from combat.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

Flying
When Mirin, Held by the Heavens dies, if your life total is less than 10, it becomes 10.

Prevent all combat damage that would be dealt to creatures this turn. Creatures that attacked you this turn don't untap during their controller's next untap step.

Enchant creature
Enchanted creature has distorted. (It can be blocked by tapped creatures but not untapped creatures.)
{1}{W}: Tap enchanted creature.

Target creature gets +1/+1 and gains distorted until end of turn. (It can be blocked by tapped creatures but not untapped creatures.)
Put the bottom card of your library into your hand.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Whenever Mistress of Frost extorts a spell, you may tap target artifact or creature.

Misty Churchyard enters the battlefield tapped.
{T}: Add {W}.
{1}{W}{W}: Until end of turn, Misty Churchyard becomes a 1/4 Cleric creature with “Whenever this creature is dealt damage, put that many +1/+1 counters on it.” Activate only if you're horrific.

Target creature gets +2/+2 and gains lifelink until end of turn.

Target creature gets +2/+2 until end of turn. You gain 2 life.

({T}: Add {W}.)
Moon of the Final Dawn enters the battlefield tapped.
{1}{W}, {T}: Scry 1. (To scry 1, look at the top card of your library. You may put that card on the bottom of your library.)

Moonchaser Meadow enters the battlefield tapped.
{T}: Add {W}.
{1}{W}{W}, {T}: Put a loyalty counter on each planeswalker you control.

Sacrifice Moonlight Agent: Blocking creatures gain first strike until end of turn.

As Moonlight Sanctum enters the battlefield, choose Waxing or Waning.
• Waxing — At the beginning of your upkeep, you gain 1 life for each enchantment you control.
• Waning — Nonenchantment spells cost {1} more to cast.

Moonlight Stag has vigilance as long as it has a +1/+1 counter on it.

First strike
Other Harpies you control get +1/+1 and have first strike.
Whenever a Harpy you control dies, put a +1/+1 counter on Moonlight Stalker.

Flying
Whenever another creature with flying enters the battlefield under your control, put a +1/+1 counter on Moonlight Strix.

When Moonshadow Remnant enters the battlefield, destroy target tapped creature.
Mirage {3}{W}{W} (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

Flying
Whenever another creature you control attacks, you may pay {1}. If you do, put a +1/+1 counter on it.

{T}: Add {W}.
{W}, {T}: Target creature gains vigilance until end of turn.

Untap target creature. Prevent all damage that would be dealt to that creature this turn. Scry 1. (To scry 1, look at the top card of your library. You may put that card on the bottom of your library.)