When this creature enters, you draw a card and you lose 1 life.

Haste (This creature can attack and as soon as it comes under your control.)
Other Goblin creatures you control get +1/+1 and have haste.

When this creature enters, create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")
, , Sacrifice a Food: Target player loses 3 life.

Flying
Creature spells with flying you cast cost less to cast.

Whenever this creature or another creature dies, target player mills a card.

Target creature gets -4/-0 until end of turn.
Draw a card.

When this creature enters, look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Menace (This creature can't be blocked except by two or more creatures.)

Whenever an opponent draws their first card each turn, if it's not their turn, you create a 1/1 red Devil creature token with "When this token dies, it deals 1 damage to any target."
Whenever one or more Devils you control attack one or more players, you and those players each draw a card, then discard a card at random.

, : Draw a card.

Flying
Creatures you control have "Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."

Whenever another creature you control with power 2 or less enters, you may pay . If you do, draw a card.

Flying
When this creature dies, each opponent loses 2 life and you gain 2 life.

When this creature dies, create a 2/1 black Cat creature token.

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on that creature instead.

: Add one mana of any color.
: Target creature becomes the color or colors of your choice until end of turn.

Flying
: This creature gains haste until end of turn.

As long as your life total is greater than or equal to your starting life total, creatures you control get +1/+1.
Whenever one or more creatures you control attack, you gain life equal to the number of attacking creatures.

Flash

Flash
Flying
Whenever this creature or another Spirit you control enters, tap target creature an opponent controls.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)

When this creature enters, target Forest becomes a 4/5 green Treefolk creature for as long as this creature remains on the battlefield. It's still a land.

This spell costs less to cast if you control a Wizard.
Counter target spell.

Flying
When this creature enters, return a permanent you control to its owner's hand.

Target creature gets +2/+2 and gains trample until end of turn.
Draw a card.

Blindblast deals 1 damage to target creature. That creature can't block this turn.
Draw a card.

This spell costs less to cast if you control a creature with flying.
Draw two cards.

: This creature gets +1/+0 until end of turn.

Douse in Gloom deals 2 damage to target creature and you gain 2 life.

As this artifact enters, choose a creature type.
Creature spells you cast of the chosen type cost less to cast.
At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

: Add one mana of any color.

Draw a card for each creature you control with a +1/+1 counter on it. Those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

You draw two cards, lose 2 life, then mill two cards.

This spell can't be countered.
Volcanic Fallout deals 2 damage to each creature and each player.

, Sacrifice a creature: Put a +1/+1 counter on this creature.

Defender (This creature can't attack.)
: Until end of turn, this creature loses defender and gains flying.