Players have no maximum hand size. At the beginning of each player's draw step, that player draws an additional card, then discards a card.

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

As Black Vise enters the battlefield, choose an opponent. At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

{1}, {T}: Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost. {3}, {T}, Remove X charge counters from Brain in a Jar: Scry X.

At the beginning of each player's upkeep, Copper Tablet deals 1 damage to that player.

If a land is tapped for two or more mana, it produces {C} instead of any other type and amount. Each spell a player casts costs {1} more to cast for each other spell that player has cast this turn.

At the beginning of each opponent's upkeep, if that player has seven or more cards in hand, Ebony Owl Netsuke deals 4 damage to that player.

Players have no maximum hand size. {X}{X}, {T}: Each player draws X cards. {2}{U}, {T}: Each opponent mills cards equal to the number of cards in their hand.

At the beginning of each player's draw step, that player draws two additional cards.

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

At the beginning of each opponent's upkeep, Iron Maiden deals X damage to that player, where X is the number of cards in their hand minus 4.

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

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

At the beginning of each opponent's upkeep, if that player has five or more cards in hand, Misers' Cage deals 2 damage to that player.

At the beginning of each opponent's upkeep, Skullcage deals 2 damage to that player unless they have exactly three or exactly four cards in hand.

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

As long as Static Orb is untapped, players can't untap more than two permanents during their untap steps.

{T}: Add {C}. {T}: Add {U} or {R}. Talisman of Creativity deals 1 damage to you.

{T}: Each player draws a card.

At the beginning of your upkeep, if you have five or more cards in hand, Thumbscrews deals 1 damage to target opponent or planeswalker.

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Flying, haste Whenever an opponent casts their second spell each turn, draw a card. Partner (You can have two commanders if both have partner.)

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.)

Flying Whenever Dragon Mage deals combat damage to a player, each player discards their hand, then draws seven cards.

At the beginning of each player's upkeep, that player mills X cards, where X is the number of cards in their hand.

When Gadwick, the Wizened enters the battlefield, draw X cards. Whenever you cast a blue spell, tap target nonland permanent an opponent controls.

{U}, {T}: Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

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

{1}{R}, {T}, Sacrifice Magus of the Wheel: Each player discards their hand, then draws seven cards.

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.

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.

{2}{U}, {T}: Each player mills three cards. Exile up to two creature cards put into graveyards this way. Create an X/X blue Zombie creature token, where X is the total power of the cards exiled this way.

Flying Whenever you draw a card, create a 1/1 blue and red Insect creature token with flying and haste. {2}{U}{R}: Draw a card, then discard a card. When The Locust God dies, return it to its owner's hand at the beginning of the next end step.

Each player can't cast more than one spell each turn.

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

Flash If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

At the beginning of each player's end step, that player draws a card. If the player is your opponent and has four or more cards in hand, Fevered Visions deals 2 damage to that player.

Whenever an opponent casts a spell, that player draws seven cards.

Players can't cast spells that share a color with the spell most recently cast this turn.

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Whenever you draw a card, each opponent mills two cards.

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Pyrohemia. {R}: Pyrohemia deals 1 damage to each creature and each player.

Whenever you draw a card, target opponent mills two cards. If two nonland cards that share a color were milled this way, repeat this process. {5}{U}: Draw a card, then discard a card.

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Return all creatures to their owners' hands.

Each player draws two cards.

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

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

{T}, Pay 1 life: Add {U} or {R}. {1}, {T}, Sacrifice Fiery Islet: Draw a card.

({T}: Add {U}.)

({T}: Add {R}.)

{T}: Add {C}. {1}{U}, {T}: Return target Wizard you control to its owner's hand.

{T}: Add {C}. {2}, {T}, Sacrifice a Desert: Exile all graveyards.

{T}: Add {C}. {T}: Add {U} or {R}. Shivan Reef deals 1 damage to you.

Spirebluff Canal enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {U} or {R}.

({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.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain. {T}: Add {U} or {R}.

Each player shuffles their hand and graveyard into their library, then draws seven cards. If it's your turn, end the turn. (Exile all spells and abilities from the stack, including this card. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

Each player shuffles their hand and graveyard into their library, then draws seven cards. Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Choose one — • Each player draws X cards. • Each player mills X cards.

Lands target player controls don't untap during their next untap step.

Join forces — Starting with you, each player may pay any amount of mana. Each player draws X cards, where X is the total amount of mana paid this way.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Each player draws X cards.

Each player discards their hand, then draws seven cards. Miracle {1}{R} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Each player draws X cards. Forecast — {2}{U}, Reveal Skyscribing from your hand: Each player draws a card. (Activate only during your upkeep and only once each turn.)

Return all permanents of the color of your choice to their owners' hands.