Equipped creature gets +1/+0 for each artifact you control.
: Attach this Equipment to target creature you control.
Equip

Changeling (This card is every creature type.)

, : Target player mills two cards.

Up to two target creatures each get +1/+2 until end of turn. You gain 2 life.

As an additional cost to cast this spell, return a creature you control to its owner's hand.
Counter target spell.

Destroy target artifact.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When this creature is turned face up, put a +1/+1 counter on another target creature you control.

Escalate—Discard a card. (Pay this cost for each mode chosen beyond the first.)
Choose one or more —
• Target opponent reveals their hand. You choose an instant or sorcery card from it. That player discards that card.
• Target creature gets -2/-2 until end of turn.
• Target opponent loses 2 life and you gain 2 life.

Whenever you cast a noncreature spell, put a +1/+1 counter on this creature.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When this creature dies, draw a card.

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

Flying
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Whenever this creature deals combat damage to a player, if you control a Swamp, you may have that player discard a card.

Enchant creature
Enchanted creature gets +2/+0 and has "When this creature dies, draw a card."

Destroy target artifact.

Protection from creatures

Cumulative upkeep—Put two cards from a single graveyard on the bottom of their owner's library. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

, , Choose flying, first strike, trample, or shadow: Until end of turn, target creature with the chosen ability loses it and another target creature gains it.

Volcanic Geyser deals X damage to any target.

Spend only black mana on X.
Consume Spirit deals X damage to any target and you gain X life.

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
, : Put a training counter on target creature. That creature gains bushido 1 and becomes a Samurai in addition to its other creature types. Activate only as a sorcery.

Revolt — When this creature enters, if a permanent left the battlefield under your control this turn, create a 1/1 colorless Servo artifact creature token.

Target creature you control gains protection from the color of your choice until end of turn.
Draw a card.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
Whenever you cast an artifact spell, put a +1/+1 counter on this creature.

Whenever a creature you control enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Whenever you cast a spell that targets a creature you control, draw a card.

Mill three cards, then you may return a creature or land card from your graveyard to your hand. (To mill three cards, put the top three cards of your library into your graveyard.)

, , Sacrifice this creature: Destroy X target lands.

: Target legendary creature gets +2/+2 until end of turn.

Reach
Undergrowth — When this creature enters, choose up to one target creature you don't control with flying. This creature gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard, then you may have this creature fight that creature.

Enchant creature
Enchanted creature gets +1/+1 and has "Whenever this creature attacks, tap target creature defending player controls."

Target player discards two cards at random.

Whenever another creature you control enters, you may gain 1 life.
Whenever a creature an opponent controls enters, you may have that player lose 1 life.

, Sacrifice this creature: Choose one —
• This creature deals 2 damage to target creature.
• Destroy target colorless nonland permanent.

As an additional cost to cast this spell, sacrifice a creature.
Fling deals damage equal to the sacrificed creature's power to any target.

Fire deals 2 damage divided as you choose among one or two targets.

First strike
Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.