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.

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 black. (Mana symbols on that permanent remain unchanged.)

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

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

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.)

, : 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.)

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.)

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

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

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

Target player discards X cards at random.

: Target creature can't be regenerated this turn.

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.

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

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

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

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

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.

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.)

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.)

Flying
: Add one mana of any color.

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

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.

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.

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.

, : Target player mills two cards.

First strike

Haste
At the beginning of your upkeep, if this card is in your graveyard with three or more creature cards above it, you may put this card onto the battlefield.

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

Players skip their untap steps.
At the beginning of your upkeep, sacrifice this enchantment unless you pay .

Black creatures get +1/+1.

Return all artifacts target player owns to their hand.

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