(: Add .)

At the beginning of your upkeep, put a time counter on this artifact.
, , Sacrifice this artifact: This artifact deals damage equal to the number of time counters on it to each creature and each player.

Black spells you cast cost more to cast.

Whenever a player casts a black spell, you may pay . If you do, you gain 1 life.

Whenever this creature attacks and isn't blocked, it gets +2/+0 until end of combat.

Enchant creature
Enchanted creature gets +3/+0 and can only attack alone.

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.

Prevent the next 1 damage that would be dealt to any target this turn.
Draw a card at the beginning of the next turn's upkeep.

Target player gains X life.

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay ."

Enchant creature
Enchanted creature gets +2/+1.

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
Draw a card at the beginning of the next turn's upkeep.

Prevent all combat damage that would be dealt this turn.

, : Draw a card.

This land enters tapped.
: Add .
, Sacrifice this land: Add .

Untap target creature an opponent controls and gain control of it until end of turn. That creature gains haste until end of turn. When you lose control of the creature, tap it.

Defender (This creature can't attack.)
: 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.)

Creatures you control have menace. (They can't be blocked except by two or more creatures.)

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.)

: Add . If you control an Urza's Mine and an Urza's Power-Plant, add instead.

Enchant creature you control
Whenever enchanted creature attacks and isn't blocked, you may have it assign no combat damage this turn. If you do, defending player discards a card at random.

Defender (This creature can't attack.)

: Regenerate this creature.

Enchant creature
Enchanted creature gets +3/+3.
At the beginning of the upkeep of enchanted creature's controller, put a -1/-1 counter on that creature.

Enchant creature
Enchanted creature has menace. (It can't be blocked except by two or more creatures.)

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

As this creature enters, choose a number between 0 and 7.
At the beginning of your upkeep, you may choose a number between 0 and 7.
Shapeshifter's power is equal to the last chosen number and its toughness is equal to 7 minus that number.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Nightmare's power and toughness are each equal to the number of Swamps you control.

Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.)
Other Zombies have ": Regenerate this permanent."

Trample
Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking Aurochs.

, , Sacrifice this artifact: Add one mana of any color. Draw a card at the beginning of the next turn's upkeep.

First strike

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, this creature deals 8 damage to you unless you pay .