Vigilance, lifelink

When Aragorn, King of Gondor enters the battlefield, you become the monarch.

Whenever Aragorn attacks, up to one target creature can't block this turn. If you're the monarch, creatures can't block this turn.

Flying

When Archon of Coronation enters the battlefield, you become the monarch.

As long as you're the monarch, damage doesn't cause you to lose life. (When a creature deals combat damage to you, its controller still becomes the monarch.)

When Canal Courier enters the battlefield, you become the monarch.

Whenever Canal Courier and another creature attack different players, Canal Courier can't be blocked this combat.

When Court of Ambition enters the battlefield, you become the monarch.

At the beginning of your upkeep, each opponent loses 3 life unless they discard a card. If you're the monarch, instead each opponent loses 6 life unless they discard two cards.

When Court of Bounty enters the battlefield, you become the monarch.

At the beginning of your upkeep, you may put a land card from your hand onto the battlefield. If you're the monarch, instead you may put a creature or land card from your hand onto the battlefield.

When Court of Embereth enters the battlefield, you become the monarch.

At the beginning of your upkeep, create a 3/1 red Knight creature token. Then if you're the monarch, Court of Embereth deals X damage to each opponent, where X is the number of creatures you control.

When Court of Grace enters the battlefield, you become the monarch.

At the beginning of your upkeep, create a 1/1 white Spirit creature token with flying. If you're the monarch, create a 4/4 white Angel creature token with flying instead.

When Court of Locthwain enters the battlefield, you become the monarch.

At the beginning of your upkeep, exile the top card of target opponent's library. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast it. If you're the monarch, until end of turn, you may cast a spell from among cards exiled with Court of Locthwain without paying its mana cost.

Trample

When Crimson Fleet Commodore enters the battlefield, you become the monarch.

When Crown-Hunter Hireling enters the battlefield, you become the monarch.

Crown-Hunter Hireling can't attack unless defending player is the monarch.

When Dawnglade Regent enters the battlefield, you become the monarch.

As long as you're the monarch, permanents you control have hexproof.

When Emberwilde Captain enters the battlefield, you become the monarch.

Whenever an opponent attacks you while you're the monarch, Emberwilde Captain deals damage to that player equal to the number of cards in their hand.

Double strike

Éomer, King of Rohan enters the battlefield with a +1/+1 counter on it for each other Human you control.

When Éomer enters the battlefield, target player becomes the monarch. Éomer deals damage equal to its power to any target.

Whenever a legendary creature with mana value 4 or greater enters the battlefield under your control, you become the monarch.

At the beginning of your end step, if you're the monarch, create two 1/1 white Human Soldier creature tokens.

All creatures get -4/-4 until end of turn. You become the monarch.

At the beginning of your end step, if you're the monarch, each opponent loses 1 life and you gain 1 life.

When Keeper of Keys enters the battlefield, you become the monarch.

At the beginning of your upkeep, if you're the monarch, creatures you control can't be blocked this turn.

Menace, deathtouch

Whenever Marchesa, Resolute Monarch attacks, remove all counters from up to one target permanent.

At the beginning of your upkeep, if you haven't been dealt combat damage since your last turn, you draw a card and you lose 1 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create two 1/1 white Human Soldier creature tokens.

II — Create two 2/2 red Human Knight creature tokens with trample and haste.

III — Put an indestructible counter on up to one target Human. You become the monarch.

When Palace Sentinels enters the battlefield, you become the monarch.

Deathtouch, haste

When Queen Marchesa enters the battlefield, you become the monarch.

At the beginning of your upkeep, if an opponent is the monarch, create a 1/1 black Assassin creature token with deathtouch and haste.

Sliver creatures you control have "When this creature enters the battlefield, Slivers you control get +1/+1 until end of turn if you're the monarch. Otherwise, you become the monarch."

Haste

Whenever Squee, Dubious Monarch attacks, create a 1/1 red Goblin creature token that's tapped and attacking.

You may cast Squee, Dubious Monarch from your graveyard by paying and exiling four other cards from your graveyard rather than paying its mana cost.

Living metal (As long as it's your turn, this Vehicle is also a creature.)

Flying, menace, haste

Whenever Starscream deals combat damage to a player, if there is no monarch, that player becomes the monarch.

Whenever you become the monarch, convert Starscream.

Deathtouch

When Thorn of the Black Rose enters the battlefield, you become the monarch.

At the beginning of your end step, if you're the monarch, put a +1/+1 counter on Throne Warden.