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

Skip your draw step.
Whenever you discard a card, exile that card from your graveyard.
Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

: This creature deals 1 damage to any target and 1 damage to you.

Flip a coin. If you win the flip, you gain 1 life and target opponent loses 1 life, and you decide whether to flip again. If you lose the flip, you lose 1 life and that opponent gains 1 life, and that player decides whether to flip again. Double the life stakes with each flip.

, Pay 1 life: Counter target black spell.

: Target land becomes a Swamp until its controller's next untap step.

Plague Rats's power and toughness are each equal to the number of creatures named Plague Rats on the battlefield.

Flying
: This creature gets +1/+0 until end of turn. Activate only once each turn.

Exile two target artifacts.

Each player loses a third of their life, then discards a third of the cards in their hand, then sacrifices a third of the creatures they control of their choice, then sacrifices a third of the lands they control of their choice. Round up each time.

Defender (This creature can't attack.)
First strike

: Target creature other than this creature has base power and toughness 0/2 until end of turn.

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Enchant creature
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

: Target creature with power 2 or less can't be blocked this turn.

Touch of Death deals 1 damage to target player or planeswalker. You gain 1 life.
Draw a card at the beginning of the next turn's upkeep.

Attacking creatures get +1/+0 and gain trample until end of turn.

Destroy all enchantments.

, : Exile the top card of your library. Until the beginning of your next upkeep, you may play that card.

Sacrifice a creature: Add .

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Haste (This creature can attack and as soon as it comes under your control.)
At the beginning of the end step, sacrifice this creature.

Each player may draw up to two cards. For each card less than two a player draws this way, that player gains 2 life.

Defender (This creature can't attack.)
: This creature gets +1/+0 until end of turn.

: Add .

The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

Whenever an opponent casts a creature spell, this enchantment deals 2 damage to that player unless they pay .

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

: This creature deals 2 damage to any target and 3 damage to you.

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

, Sacrifice an enchantment: Destroy target enchantment.
: Counter target enchantment spell.

Enchant creature
When this Aura enters, draw a card at the beginning of the next turn's upkeep.
Enchanted creature gets +1/+1.

Flying

, Discard a nonblack card: Draw a card.
, Discard a black card: Draw two cards, then discard one of them.