Target spell or permanent becomes red. (Its mana symbols remain unchanged.)

Each player shuffles the cards from their hand into their library, then draws that many cards.

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.

Target spell or permanent becomes white. (Mana symbols on that permanent remain unchanged.)

Target player discards X cards at random.

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Target spell or permanent becomes black. (Mana symbols on that permanent remain unchanged.)

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

This artifact doesn't untap during your untap step.
At the beginning of your upkeep, you may pay . If you do, untap this artifact.
At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you.
: Add .

Target spell or permanent becomes blue. (Mana symbols on that permanent remain unchanged.)

Enchant Wall
Enchanted Wall can attack as though it didn't have defender.

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Enchant artifact
Whenever you're dealt damage, put that many vitality counters on this Aura.
At the beginning of your upkeep, you may remove a vitality counter from this Aura. If you do, you gain 1 life.

Earthquake deals X damage to each creature without flying and each player.

Target spell or permanent becomes green. (Mana symbols on that permanent remain unchanged.)

: Target creature can't be regenerated this turn.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature gets +0/+2 and has reach. (It can block creatures with flying.)

Change the text of target spell or permanent by replacing all instances of one basic land type with another. (For example, you may change "swampwalk" to "plainswalk." This effect lasts indefinitely.)

Target blocking creature gets +7/+7 until end of turn.

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

Flying (This creature can't be blocked except by creatures with flying or reach.)
: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

, : Target creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

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

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

First strike

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

Enchant creature
: Enchanted creature gets +1/+1 until end of turn.

, : Target player mills two cards.

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

The next time a source of your choice would deal damage to you this turn, instead that source deals that much damage to you and Eye for an Eye deals that much damage to that source's controller.

Black creatures get +1/+1.

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

Enchant artifact
At the beginning of the upkeep of enchanted artifact's controller, this Aura deals 1 damage to that player.