Return X target creature cards from your graveyard to the battlefield.
Miracle (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Cycling (, Discard this card: Draw a card.)
When you cycle this card, you may have it deal X damage to target creature, where X is the number of Goblins on the battlefield.

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

Whenever an opponent attacks, if they attacked you and/or a planeswalker you control, draw a card.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever this creature attacks, another target creature you control gains flying until end of turn.

Reyhan enters with three +1/+1 counters on it.
Whenever a creature you control dies or is put into the command zone, if it had one or more +1/+1 counters on it, you may put that many +1/+1 counters on target creature.
Partner (You can have two commanders if both have partner.)

Whenever one or more land cards are put into your graveyard from anywhere, create a 0/1 green Plant creature token.
, Sacrifice three creatures: Return target land card from your graveyard to your hand.

Improvise (Each artifact you tap after you're done activating mana abilities pays for .)
Reveal the top X cards of your library. You may put any number of artifact cards with mana value X or less from among them onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield into your graveyard.

First strike
Whenever Mirri attacks, each opponent can't block with more than one creature this combat.
As long as Mirri is tapped, no more than one creature can attack you each combat.

Whenever another creature enters, its controller may draw a card if its power is greater than each other creature's power.
, : Add X mana in any combination of colors, where X is the greatest power among creatures you control.

This creature can't be blocked by creatures with power 2 or less.
If a creature an opponent controls would die, instead exile it and put a number of +1/+1 counters equal to that creature's power on this creature.

As this creature enters, choose a number.
Noncreature spells with mana value equal to the chosen number can't be cast.

Menace
At the beginning of your end step, put a bounty counter on target creature an opponent controls. For as long as that creature has a bounty counter on it, it has "When this creature dies, each opponent draws a card and gains 2 life."

Whenever this creature deals combat damage to a player, draw a card.

Menace
Whenever this creature deals combat damage to a player, that player exiles a card from their hand face down.
You may look at cards exiled with this creature, and you may play lands and cast spells from among those cards.

Flying
When this creature leaves the battlefield, choose an opponent who controls more lands than you. Search your library for a number of Plains cards equal to the difference, reveal those cards, put one of them onto the battlefield tapped and the rest into your hand, then shuffle.

Whenever this creature deals damage to a player, that player gets a poison counter. (A player with ten or more poison counters loses the game.)

Whenever a land enters, Zo-Zu deals 2 damage to that land's controller.

Whenever this creature attacks, it gets +1/+1 until end of turn.

Defender (This creature can't attack.)
Protection from black

Dragon's Presence deals 5 damage to target attacking or blocking creature.

Xantcha enters under the control of an opponent of your choice.
Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls.
: Xantcha's controller loses 2 life and you draw a card. Any player may activate this ability.

+1: Draw a card, then put a card from your hand on top of your library.
−1: Exile another target permanent you own, then return it to the battlefield under your control.
−6: Choose left or right. Each player gains control of all nonland permanents other than Aminatou controlled by the next player in the chosen direction.
Aminatou, the Fateshifter can be your commander.

First strike
At the beginning of each opponent's end step, that player creates a 1/1 red Goblin creature token with "Creatures you control attack each combat if able."

You may have this enchantment enter as a copy of an enchantment you control, except it has "At the beginning of your upkeep, you may exile this enchantment. If you do, return it to the battlefield under its owner's control."

Enchant creature
Enchanted creature has haste and "At the beginning of your upkeep, destroy this creature. Reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and attach Shifting Shadow to it, then put all other cards revealed this way on the bottom of your library in a random order."

Deathtouch
Whenever Silas Renn deals combat damage to a player, choose target artifact card in your graveyard. You may cast that card this turn.
Partner (You can have two commanders if both have partner.)

Tuvasa gets +1/+1 for each enchantment you control.
Whenever you cast your first enchantment spell each turn, draw a card.

Haste
, : Exile target instant or sorcery card from your graveyard.
, , Sacrifice this creature: Cast any number of cards exiled with this creature without paying their mana costs.

Enchant player
Whenever enchanted player is attacked, create a 2/2 black Zombie creature token. Each opponent attacking that player does the same.

When this creature enters, you may search your library for a creature card with toughness 2 or less, reveal it, put it into your hand, then shuffle.

When this creature enters, secretly choose an opponent.
Reveal the player you chose: Exile target creature that's attacking you if it's controlled by the chosen player. Activate only once.

Gyrus enters with a number of +1/+1 counters on it equal to the amount of mana spent to cast it.
Whenever Gyrus attacks, you may exile target creature card with lesser power from your graveyard. If you do, create a token that's a copy of that card and that's tapped and attacking. Exile the token at end of combat.

Flip a coin. If you win the flip, you gain 1 life and target opponent loses 1 life, and you decide whether to flip again. If you lose the flip, you lose 1 life and that opponent gains 1 life, and that player decides whether to flip again. Double the life stakes with each flip.

Enchant player
Whenever enchanted player is attacked, you gain 2 life. Each opponent attacking that player does the same.