Draw cards equal to the number of cards in your hand, then discard a card for each card drawn this way.

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Flying

Whenever Ancient Silver Dragon deals combat damage to a player, roll a d20. Draw cards equal to the result. You have no maximum hand size for the rest of the game.

Flying, vigilance

, : Exile another target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

, , Exert Angel of Condemnation: Exile another target creature until Angel of Condemnation leaves the battlefield. (An exerted creature won't untap during your next untap step.)

Flying

Other nonblack creatures you control get +1/+1.

Players can't pay life or sacrifice creatures to cast spells or activate abilities.

Flash; convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Flying

When Angel of Salvation enters, prevent the next 5 damage that would be dealt this turn to any number of targets, divided as you choose.

Put two +1/+1 counters on target creature. It gains vigilance, trample, lifelink, indestructible, and haste until end of turn.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Exile target creature or planeswalker. Its controller creates a 4/4 white Angel creature token with flying.

Whenever a creature you control attacks alone, it gets +X/+X until end of turn, where X is the number of creatures you control.

Prevent all combat damage that would be dealt this turn.

Cycling (, Discard this card: Draw a card.)

Whenever you attack with one or more non-Gnome creatures, put a +1/+1 counter on Anim Pakal, then create X 1/1 colorless Gnome artifact creature tokens that are tapped and attacking, where X is the number of +1/+1 counters on Anim Pakal.

Whenever one or more +1/+1 counters are put on a permanent you control, you may pay . If you do, create a 1/1 colorless Servo artifact creature token.

, : Choose a counter on target permanent or player. Give that permanent or player another counter of that kind.

Whenever Anje, Maid of Dishonor and/or one or more other Vampires you control enter, create a Blood token. This ability triggers only once each turn. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

, Sacrifice another creature or a Blood token: Each opponent loses 2 life and you gain 2 life.

At the beginning of combat on your turn, you may have target Vampire get +2/+0 until end of turn.

: Target attacking creature gets +1/+1 until end of turn.

Other Rogues you control get +1/+1.

Whenever one or more Rogues you control deal combat damage to a player, that player mills a card for each 1 damage dealt to them. If the player mills at least one creature card this way, you draw a card. (To mill a card, a player puts the top card of their library into their graveyard.)

Target creature gets +4/+3 until end of turn.

Counter target creature or planeswalker spell unless its controller pays . If an opponent has eight or more cards in their graveyard, instead counter that spell, then scry 2.

Flying

Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard.

At the beginning of your upkeep, tap Apocalypse Demon unless you sacrifice another creature.

Whenever you crank Applied Aeronautics, until end of turn, target creature gets +1/+0, gains flying, and becomes an artifact in addition to its other types.

When Aquatic Incursion enters, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or abilities your opponents control.)

: Target Merfolk can't be blocked this turn.

Target creature gets +2/+2 and gains reach until end of turn. Untap it.

: Draw a card, then discard a card. Put a quest counter on Arcade Gannon.

For Auld Lang Syne — Once during each of your turns, you may cast an artifact or Human spell from your graveyard with mana value less than or equal to the number of quest counters on Arcade Gannon.

Look at the top four cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Choose target creature. Whenever that creature is dealt damage this turn, it deals that much damage to each other creature and each player.

Flying, trample

At the beginning of your upkeep, sacrifice a Human. If you can't, tap Archdemon of Greed and it deals 9 damage to you.

Flying, trample

At the beginning of your upkeep, sacrifice a non-Zombie creature, then create a 2/2 black Zombie creature token.

Creatures you control have trample.

Creatures your opponents control lose trample and can't have or gain trample.

Vigilance

Whenever Architect of Restoration attacks or blocks, create a 1/1 colorless Spirit creature token.

When your commander deals combat damage to a player, if there is no monarch, you become the monarch.

At the beginning of the monarch's end step, that player draws a card.

Flying

Protection from white (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything white.)

Creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures.

Flying

Whenever Archon of Cruelty enters or attacks, target opponent sacrifices a creature or planeswalker of their choice, discards a card, and loses 3 life. You draw a card and gain 3 life.

Flying

When Archon of Falling Stars dies, you may return target enchantment card from your graveyard to the battlefield.

Flying

Whenever Archon of Redemption or another creature you control with flying enters, you may gain life equal to that creature's power.

Flying

Whenever Archon of the Triumvirate attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.)

Flying, vigilance, trample

As Archon of Valor's Reach enters, choose artifact, enchantment, instant, sorcery, or planeswalker.

Players can't cast spells of the chosen type.

Archpriest of Iona's power is equal to the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

At the beginning of combat on your turn, if you have a full party, target creature gets +1/+1 and gains flying until end of turn.

Archway of Innovation enters tapped unless you control an Island.

: Add .

, : The next spell you cast this turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for .)

: Target artifact creature's controller sacrifices it. That player may search their library for a noncreature artifact card, put it onto the battlefield, then shuffle.

Target permanent becomes an artifact in addition to its other types until end of turn.

Draw a card.

Arisen Gorgon has deathtouch as long as you control a Liliana planeswalker. (Any amount of damage this deals to a creature is enough to destroy it.)

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

+2: Add .

0: Until end of turn, Arlinn, the Moon's Fury becomes a 5/5 Werewolf creature with trample, indestructible, and haste.

At the beginning of your upkeep, put a doom counter on Armageddon Clock.

At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.

: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.

Enchant creature

Enchanted creature gets +1/+1 for each Plains you control and has flying.

Whenever Armory Automaton enters or attacks, you may attach any number of target Equipment to it. (Control of the Equipment doesn't change.)

Return target creature to its owner's hand.

Addendum — If you cast this spell during your main phase, draw a card.

Destroy target artifact. It can't be regenerated. Create X 1/1 green Saproling creature tokens, where X is that artifact's mana value.

Flying

: Artifact creatures you control get +1/+0 until end of turn.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Change the text of target spell or permanent by replacing all instances of one creature type with another. The new creature type can't be Wall. (This effect lasts indefinitely.)

Haste

Ashen Monstrosity attacks each combat if able.

, Sacrifice Ashnod's Coupon: Target player gets you target drink. You pay any costs for the drink.