Prevent all combat damage that would be dealt this turn if was spent to cast this spell. Each player loses 1 life for each attacking creature they control if was spent to cast this spell. (Do both if was spent.)

, : Add .

Target player draws two cards and loses 2 life.

Destroy target creature. It can't be regenerated.

: Create a 1/1 green Saproling creature token.
: Creatures you control get +1/+1 until end of turn.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

( can be paid with either or .)
, Discard a card: Target creature gets -2/-2 until end of turn.
: Create a 2/1 red Goblin creature token with haste. Exile it at the beginning of the next end step.

Destroy target artifact or enchantment.
Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

, : Regenerate target artifact.

Enchant creature
Enchanted creature has haste.
: Enchanted creature gets +1/+0 until end of turn.
When a creature with mana value 6 or greater enters, you may return this card from your graveyard to the battlefield attached to that creature.

Defender
Put a -0/-1 counter on this creature: Add . Activate only once each turn.

: Return this card from your graveyard to the battlefield tapped.

Sacrifice this creature: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Whenever you're dealt damage, put that many charge counters on this artifact.
At the beginning of each upkeep, you may remove a charge counter from this artifact. If you do, you gain 1 life.

Discard two cards: Create a 2/2 black Zombie creature token.

All creatures able to block this creature do so.
Channel — , Discard this card: All creatures able to block target creature this turn do so.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip

Target creature gets -3/-0 until end of turn.
Target creature gets -0/-3 until end of turn.

Destroy target creature with flying.

Savage Twister deals X damage to each creature.

, : Add .

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, it deals 2 damage to any target.

, : Add .

Changeling (This card is every creature type.)
Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature.

Flash
When this creature enters, prevent all damage that would be dealt to artifact creatures this turn.

Creatures you control have haste.
Sacrifice this enchantment: Target creature gets +2/+2 until end of turn.

Whenever this creature deals combat damage to a player, you may have it deal 2 damage to target creature that player controls.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

You may pay and return a basic land you control to its owner's hand rather than pay this spell's mana cost.
This artifact enters tapped.
: Add or .

As long as this artifact is untapped, if a creature would deal combat damage to you, prevent 1 of that damage.
, : Attacking creatures get +1/+0 until end of turn.

When this creature enters, you may search your library for a creature card with mana value 6 or greater, reveal it, put it into your hand, then shuffle.

, , Discard a card: Add .

This creature enters with two +1/+1 counters on it.
, Remove a +1/+1 counter from this creature: Target player searches their library for a basic land card, puts it onto the battlefield tapped, then shuffles.

: Add , , or .

Dragon spells you cast cost less to cast.

Exile target creature.