msem-instigator

Vigilance
Engage (This creature must be blocked each combat if able.)
Other Soldiers you control get +1/+1 and have first strike.

{T}: Add one mana of any color a basic land you control could produce.

Whenever you cast an instant or sorcery spell, target player mills a card.

Archive 3 (As this enters, shuffle the top three cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever you draw a card from the archived library, target creature you control can't be blocked this turn.

Exile target creature. At the beginning of the next end step, return that card to the battlefield under its owner's control with your choice of X counters on it from among +1/+1, flying, first strike, and/or vigilance.

Destroy target artifact or enchantment. You gain life equal to its mana value.

Whenever a nontoken creature you control dies, create a 1/1 colorless Spirit creature token with flying.

Return target creature, instant, or sorcery card from your graveyard to your hand. Then exile Keep What Was Lost if it wasn't cast from your hand.
Acquiesce (If you cast this spell from your hand, exile it as it resolves. When one or more creatures you control deal combat damage to an opponent, you may cast this card from exile without paying its mana cost.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create two 1/1 colorless Construct Actor creature tokens.
II, III — Creatures you control gain flying until end of turn. Whenever one or more of them deals combat damage to a player this turn, draw a card.
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When this artifact enters, create a 2/1 white Soldier creature token. It seeks valor. (Give it that Oath Aura. Fulfill it by it dealing combat damage to a player to create a 2/1 white Soldier token.)
Whenever an enchantment you control enters, draw a card.

Flying
{2}, Exile an instant or sorcery card from your graveyard: Spellbone Screecher deals 1 damage to any target.

Whenever you draw a card, you may have target opponent exile the top card of their library face down.
You may look at and play cards exiled with Thought Siphon, and you may spend blue mana as though it were mana of any color to cast them.

Defender
Andazir Elite can attack as though it didn't have defender as long as it's equipped.

Flying, trample
If a creature card would be put into an opponent's graveyard from anywhere, exile it with a soul counter on it instead.
Whenever Tamaak's Devourer deals combat damage to a player, put a creature card exiled with a soul counter on it onto the battlefield under your control.

Sheltered Haven enters tapped.
{T}: Add {G} or {W}.
{2}{G}{W}, {T}, Sacrifice Sheltered Haven: Draw a card.

Choose target creature card in your graveyard that was put there from the battlefield this turn. Return that card to the battlefield tapped.
Fabled {3}{B}{B} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that creature.)

When Endrison Familiar enters, reveal the top four cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.

Sneaking Capuchin can't be blocked except by creatures with defender.
{U}: Counter target spell or ability that targets Sneaking Capuchin.

Indestructible
Immortal Child can't block creatures with greater power.

Exile target creature you control, then return that card to the battlefield under your control. Scry 1.

Sacrifice a creature: You lose life equal to the sacrificed creature's power and draw cards equal to its toughness.

{T}: Add {C}.
{T}, Pay 1 life: Add {R} or {G}.

Counter target spell unless its controller pays {X}. Look at the top X cards of your library. Put up to one of them on top of your library and the rest on the bottom of your library in a random order.

Choose one —
• Town Justice deals damage to target creature or planeswalker equal to the greatest power among Citizens and Peasants you control.
• Town Justice deals damage to target creature or planeswalker equal to the number of Citizens and/or Peasants you control.