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.

Deathtouch
: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.)
When Keepsake Gorgon becomes monstrous, destroy target non-Gorgon creature an opponent controls.

Destroy target attacking creature.

Whenever you cast an instant or sorcery spell, Kiln Fiend gets +3/+0 until end of turn.

Equipped creature gets +1/+0 and has flying.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

When Knights of the Black Rose enters the battlefield, you become the monarch.
Whenever an opponent becomes the monarch, if you were the monarch as the turn began, that player loses 2 life and you gain 2 life.

Target creature gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy that creature.)
Draw a card.

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

Draft Leovold's Operative face up.
As you draft a card, you may draft an additional card from that booster pack. If you do, turn Leovold's Operative face down, then pass the next booster pack without drafting a card from it. (You may look at that booster pack.)

Each opponent can't draw more than one card each turn.
Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.

Council's dilemma — When Lieutenants of the Guard enters the battlefield, starting with you, each player votes for strength or numbers. Put a +1/+1 counter on Lieutenants of the Guard for each strength vote and create a 1/1 white Soldier creature token for each numbers vote.

Whenever you cast a spell, Manaplasm gets +X/+X until end of turn, where X is that spell's converted mana cost.

When Marchesa's Decree enters the battlefield, you become the monarch.
Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

When Mausoleum Turnkey enters the battlefield, return target creature card of an opponent's choice from your graveyard to your hand.

Trample
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

: Draw a card, then discard a card.

Flying
Whenever Merfolk Skyscout attacks or blocks, untap target permanent.

Flying
Council's dilemma — When Messenger Jays enters the battlefield, starting with you, each player votes for feather or quill. Put a +1/+1 counter on Messenger Jays for each feather vote and draw a card for each quill vote. For each card drawn this way, discard a card.

Defender
When Mnemonic Wall enters the battlefield, you may return target instant or sorcery card from your graveyard to your hand.

Destroy target creature.