You can't play lands.

Sacrifice a land: Draw two cards. Activate only once each turn.

Defender

When Akroan Horse enters the battlefield, an opponent gains control of it.

At the beginning of your upkeep, each opponent creates a 1/1 white Soldier creature token.

Whenever you draw your second card each turn, create a 2/2 blue Drake creature token with flying.

Whenever you draw your fifth card each turn, Alandra, Sky Dreamer and Drakes you control each get +X/+X until end of turn, where X is the number of cards in your hand.

If this spell was cast from your hand and you've cast another spell named Approach of the Second Sun this game, you win the game. Otherwise, put Approach of the Second Sun into its owner's library seventh from the top and you gain 7 life.

{T}: Add one mana of any color in your commander's color identity.

Azorius Chancery enters the battlefield tapped.

When Azorius Chancery enters the battlefield, return a land you control to its owner's hand.

{T}: Add {W}{U}.

{1}, {T}: Add {W}{U}.

Equipped creature gets +2/+0 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)

{1}: Attach Bloodthirsty Blade to target creature an opponent controls. Activate only as a sorcery.

{1}, {T}: Roll a d4 and create a number of Treasure tokens equal to the result. The player to your right gains control of Bucknard's Everfull Purse.

Whenever you draw a card, put a +1/+1 counter on Chasm Skulker.

When Chasm Skulker dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on Chasm Skulker. (They can't be blocked as long as defending player controls an Island.)

Lands you control have "{T}: Add one mana of any color."

{T}: Add one mana of any color.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add one mana of any color in your commander's color identity.

Sacrifice Commander's Sphere: Draw a card.

Whenever a creature deals combat damage to you, that creature's controller gains control of Contested War Zone.

{T}: Add {C}.

{1}, {T}: Attacking creatures get +1/+0 until end of turn.

Whenever a creature attacks you or a planeswalker you control, it gets +2/+0 until end of turn.

{2}: Target player other than Crown of Doom's owner gains control of it. Activate only during your turn.

Enchant player

Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this artifact: Add one mana of any color.")

Enchant player

Whenever enchanted player is attacked, you draw a card. Each opponent attacking that player does the same.

Enchant creature

Enchanted creature has "At the beginning of your upkeep, target opponent gains control of this creature unless you sacrifice a land."

You have no maximum hand size.

{T}: Add one mana of any color.

If you control a commander, you may cast this spell without paying its mana cost.

You may choose new targets for target spell or ability.

{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

{T}: Add one mana of any color that a land an opponent controls could produce.

Vigilance, lifelink

At the beginning of your upkeep, if you have 40 or more life, you win the game.

{T}: Add one mana of any color that a land an opponent controls could produce.

Exile target nonland permanent. Each player other than its controller creates a token that's a copy of it.

Each player may play an additional land on each of their turns.

At the beginning of each player's upkeep, if that player has no cards in hand, that player draws three cards.

Flying

When Gilded Drake enters the battlefield, exchange control of Gilded Drake and up to one target creature an opponent controls. If you don't or can't make an exchange, sacrifice Gilded Drake. This ability still resolves if its target becomes illegal.

Whenever Goblin Cadets blocks or becomes blocked, target opponent gains control of it. (This removes Goblin Cadets from combat.)

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."

Flying, haste

If a source would deal damage to you, it deals double that damage to you instead.

If a source would deal damage to Goldnight Castigator, it deals double that damage to Goldnight Castigator instead.

{T}: Add {C}.

{1}{W}, {T}: Put target enchantment card from your graveyard on top of your library.

({T}: Add {W} or {U}.)

As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{1}{W}{U}, {T}: Return target artifact or enchantment card from your graveyard to your hand.

Hithlain Rope can't be sacrificed.

{1}, {T}: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. The player to your right gains control of Hithlain Rope.

{2}, {T}: Draw a card. The player to your right gains control of Hithlain Rope.

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

{T}: Draw two cards. Target opponent gains control of Humble Defector. Activate only during your turn.

Search your library for an enchantment card, reveal it, put it into your hand, then shuffle.

Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When Illusions of Grandeur enters the battlefield, you gain 20 life.

When Illusions of Grandeur leaves the battlefield, you lose 20 life.

Enchant creature, land, or planeswalker

Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

If you would draw a card during your draw step, instead you may skip that draw. If you do, until your next turn, you can't be attacked except by creatures with flying and/or islandwalk.

{1}, {T}: Add {U}{R}.

At the beginning of your upkeep, Jinxed Idol deals 2 damage to you.

Sacrifice a creature: Target opponent gains control of Jinxed Idol.

At the beginning of each player's draw step, that player draws an additional card.

Berzerker -- Khârn the Betrayer attacks or blocks each combat if able.

Sigil of Corruption -- When you lose control of Khârn the Betrayer, draw two cards.

The Betrayer -- If damage would be dealt to Khârn the Betrayer, prevent that damage and an opponent of your choice gains control of it.

{T}: Each player may draw a card, then each player who drew a card this way gains 1 life.

Vigilance

When Loran of the Third Path enters the battlefield, destroy up to one target artifact or enchantment.

{T}: You and target opponent each draw a card.

At the beginning of your upkeep, each opponent chooses money, friends, or secrets. For each player who chose money, you and that player each create a Treasure token. For each player who chose friends, you and that player each create a 1/1 green and white Citizen creature token. For each player who chose secrets, you and that player each draw a card.

{T}: Add {C}.

{2}, {T}: Each player draws a card.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

Exchange control of two target creatures controlled by different players. If you control neither creature, draw three cards.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Mystic Monastery enters the battlefield tapped.

{T}: Add {U}, {R}, or {W}.

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Hexproof

If a source would deal damage to you, prevent that damage and put an incarnation counter on Nine Lives.

When there are nine or more incarnation counters on Nine Lives, exile it.

When Nine Lives leaves the battlefield, you lose the game.

This spell can't be countered.

Flying

Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target.

Whenever a player casts an instant or sorcery spell, you draw a card.

Flying

Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target.

{T}: Draw a card.

{T}: Add {U}.

Channel -- {3}{U}, Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

Pendant of Prosperity enters the battlefield under the control of an opponent of your choice.

{2}, {T}: Draw a card, then you may put a land card from your hand onto the battlefield. Pendant of Prosperity's owner draws a card, then that player may put a land card from their hand onto the battlefield.

Whenever an opponent casts a spell, you may exchange control of Perplexing Chimera and that spell. If you do, you may choose new targets for the spell. (If the spell becomes a permanent, you control that permanent.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Enchant artifact, creature, or planeswalker

Enchanted permanent can't attack or block, and its activated abilities can't be activated.

Whenever you draw your second card each turn, create a 1/1 white Human Soldier creature token.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand.

Whenever you draw a card, each opponent loses 1 life.

{T}: Add {U}, {R}, or {W}.

Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {U}, {R}, or {W}.)

Raugrin Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

You have no maximum hand size.

{T}: Add {C}.

Flying

At the beginning of your upkeep, sacrifice an artifact other than Rust Elemental. If you can't, tap Rust Elemental and you lose 4 life.

({T}: Add {R} or {W}.)

As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

No more than one creature can attack each combat.

No more than one creature can block each combat.

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}: Add {C}{C}.

At the beginning of your upkeep, sacrifice Solitary Confinement unless you discard a card.

Skip your draw step.

You have shroud. (You can't be the target of spells or abilities.)

Prevent all damage that would be dealt to you.

({T}: Add {U} or {R}.)

As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

You can't cast creature spells.

Indestructible

As Stuffy Doll enters the battlefield, choose a player.

Whenever Stuffy Doll is dealt damage, it deals that much damage to the chosen player.

{T}: Stuffy Doll deals 1 damage to itself.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Exchange control of target noncreature spell and target creature. Then the spell's controller may choose new targets for it.

{T}: Add {C}.

{T}: Add {R} or {W}. Talisman of Conviction deals 1 damage to you.

{T}: Each player draws a card.

When Teyo, Geometric Tactician enters the battlefield, create a 0/4 white Wall creature token with defender and flying.

+1: You and target opponent each draw a card.

-2: Choose left or right. Until your next turn, each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent.

Players have no maximum hand size.

How Civil of You -- At the beginning of your end step, each player may draw a card. Each opponent who does can't attack you or permanents you control during their next turn.

Whenever an opponent taps an artifact for mana, gain control of that artifact until the end of your next turn.

You have no maximum hand size.

At the beginning of your upkeep, if you have exactly thirteen cards in your hand, you win the game.

{3}{U}: Draw a card.

When Vedalken Plotter enters the battlefield, exchange control of target land you control and target land an opponent controls.

When Wedding Ring enters the battlefield, if it was cast, target opponent creates a token that's a copy of it.

Whenever an opponent who controls an artifact named Wedding Ring draws a card during their turn, you draw a card.

Whenever an opponent who controls an artifact named Wedding Ring gains life during their turn, you gain that much life.

At the beginning of your upkeep, you gain X life and draw X cards, where X is the number of permanents you own that your opponents control.

{U}{R}{W}: Target opponent gains control of target permanent you control.