msem-instigator

Whenever two or more creatures an opponent controls attack, adjudicate.
Enchanted creatures you control get +0/+2.

Auras and Equipment you control have indestructible.
Whenever Bearidge Marshall attacks, you may create a white Aura enchantment token named Arrest attached to target creature. It has enchant creature and “Enchanted creature can't attack or block, and its activated abilities can't be activated.”

Flying
When Cadre Hawk enters the battlefield, you may search your library and/or graveyard for a card named Cadre Hawk, reveal it, and put it into your hand. If you searched a library this way, shuffle.

Lifelink
{1}{B}: You gain 1 life.

Identity — When Danuri Warcaller enters the battlefield, if you control at least two other creatures that share a creature type with it, create a 1/1 white Soldier creature token.

Flying
Escorted Rider gets +1/+1 as long as you control another creature with flying.

Flying, first strike
Vanishing
Fadefeather Griffin enters the battlefield with a time counter on it for each other creature you control.

When Fading Prison enters the battlefield, exile target creature until Fading Prison leaves the battlefield.
{W}, Sacrifice Fading Prison: Exile target creature you control, then return that card to the battlefield under its owner's control.

Whenever you gain life, put a +1/+1 counter on Faithful Acolyte.
Faithful Acolyte has lifelink as long as it has four or more +1/+1 counters on it.

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

Enchant creature
Enchanted creature gets +2/+2.
Kindle 2—{2}{W}

Equipped creature gets +2/+2.
Whenever equipped creature attacks, until your next turn, up to one target creature can't attack or block and its activated abilities can't be activated.
Equip {2}

{W}, Sacrifice Haunting Bard: Destroy target artifact or enchantment.

Flying, lifelink

Enchant creature
Enchanted creature can't attack or block.
At the beginning of your upkeep, you gain 1 life.

Flying
Whenever Keeper of Twisted Light attacks, you gain 3 life.

Create a 2/2 white Knight creature token with vigilance, then populate.

Vigilance, lifelink

Shimmer
Lha Elite's power is equal to the number of tokens you control.

Whenever another artifact enters the battlefield under your control, put a +1/+1 counter on Lightsteel Enforcer.

Flying
Whenever Lord Jared, the Griffin Knight attacks, put a +1/+1 counter on each other attacking creature you control.

Whenever you gain life, you may pay {X}, where X is less than or equal to the amount of life you gained. If you do, draw X cards.

When Moonshadow Remnant enters the battlefield, destroy target tapped creature.
Mirage {3}{W}{W}

Defender
Ascend {1}{W}{W}