Arcane Laboratory

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

Static Orb

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

Kami of the Crescent Moon

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

Imi Statue

Players can't untap more than one artifact during their untap steps.

Well of Ideas

When Well of Ideas enters, draw two cards.
At the beginning of each other player's draw step, that player draws an additional card.
At the beginning of your draw step, draw two additional cards.

Mana Breach

Whenever a player casts a spell, that player returns a land they control to its owner's hand.

Mana Maze

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

Grafdigger's Cage

Creature cards in graveyards and libraries can't enter the battlefield.
Players can't cast spells from graveyards or libraries.

Blood Clock

At the beginning of each player's upkeep, that player returns a permanent they control to its owner's hand unless they pay 2 life.

Tsabo's Web

When Tsabo's Web enters, draw a card.
Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step.

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Anvil of Bogardan

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.

Dictate of Kruphix

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

Howling Mine

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

Font of Mythos

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

Weathered Runestone

Nonland permanent cards in graveyards and libraries can't enter the battlefield.
Players can't cast spells from graveyards or libraries.

Umbilicus

At the beginning of each player's upkeep, that player may pay 2 life. If they don't, they return a permanent they control to its owner's hand.

Mana Web

Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce.

Storm Cauldron

Each player may play an additional land during each of their turns.
Whenever a land is tapped for mana, return it to its owner's hand.