Whenever City of Brass becomes tapped, it deals 1 damage to you.
: Add one mana of any color.

Whenever an opponent casts a spell, Mogg Sentry gets +2/+2 until end of turn.

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

Flying
: Add one mana of any color.

You and target opponent each flip a coin. Mana Clash deals 1 damage to each player whose coin comes up tails. Repeat this process until both players' coins come up heads on the same flip.

Okk can't attack unless a creature with greater power also attacks.
Okk can't block unless a creature with greater power also blocks.

Each spell costs more to cast except during its controller's turn.

You gain 3 life for each creature attacking you.

Whenever a spell or ability an opponent controls causes a land to be put into your graveyard from the battlefield, return that card to the battlefield.

, : Target player mills two cards.

Creature spells can't be countered.

, Sacrifice an artifact: Draw a card.

Wall creatures can attack as though they didn't have defender.

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

: Return target land you control to its owner's hand.
, Discard a land card: Draw a card.

: Target permanent becomes the color of your choice until end of turn.

Discard a land card: Seismic Assault deals 2 damage to any target.

, : Return target enchantment card from your graveyard to your hand.

Creatures with power greater than the number of cards in your hand can't attack.

Other Elf creatures get +1/+1 and have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

All lands become 2/2 creatures until end of turn. They're still lands.

Other Zombie creatures get +1/+1.
, : Return target Zombie card from your graveyard to your hand.

Flying (This creature can't be blocked except by creatures with flying or reach.)
: Return Fleeting Image to its owner's hand.

, Pay half your life, rounded up: Destroy target nonblack creature. It can't be regenerated.

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Hammer of Bogardan deals 3 damage to any target.
: Return Hammer of Bogardan from your graveyard to your hand. Activate only during your upkeep.

, Sacrifice Daring Apprentice: Counter target spell.

At the beginning of your upkeep, you draw a card and you lose 1 life.

Whenever you cast an enchantment spell, you may draw a card.

, : Return target permanent to its owner's hand.

: Destroy target tapped creature.

, : Target player discards a card. Activate only during your turn.

Creatures don't untap during their controllers' untap steps.
Whenever a creature enters, untap all creatures.

Nonbasic lands are Mountains.

As Story Circle enters, choose a color.
: The next time a source of your choice of the chosen color would deal damage to you this turn, prevent that damage.