Target creature you control gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.)
Scry 1.

Deathtouch

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

: Another target creature you control gains protection from colorless or from the color of your choice until end of turn.

Hornet Sting deals 1 damage to any target.

Enchant Swamp
: Until end of turn, enchanted Swamp becomes a 2/2 black Spirit creature with ": This creature gets +1/+1 until end of turn." It's still a land.
When enchanted Swamp is put into a graveyard, you may return this card from your graveyard to your hand.

Sacrifice this creature: Prevent all combat damage that would be dealt this turn.

Target creature becomes black and gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)
Draw a card.

When this creature dies, create a 1/1 white Spirit creature token with flying.

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

, Sacrifice this artifact: It deals 2 damage to any target.
, Sacrifice this artifact: Draw a card.

All Sliver creatures have poisonous 1. (Whenever a Sliver deals combat damage to a player, that player gets a poison counter. A player with ten or more poison counters loses the game.)

Choose a color. Sudden Demise deals X damage to each creature of the chosen color.

, : Tap target creature.

Look at the top three cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

: This creature gains flying until end of turn.

This creature gets +1/+2 as long as an opponent controls a nonbasic land.

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
Destroy target artifact.

Enchant player
Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this token: Add one mana of any color.")

Add for each Goblin on the battlefield.

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Magma Spray deals 2 damage to target creature. If that creature would die this turn, exile it instead.

Haste
Equipped creature gets +1/+1 and has haste.
Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.

Destroy target artifact or enchantment with mana value 4 or less.

, Sacrifice a creature: Target creature gets -1/-1 until end of turn.

Lifelink
Embalm (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Cat with no mana cost. Embalm only as a sorcery.)

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

Flying (This creature can't be blocked except by creatures with flying or reach.)
: 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.)

Enchant creature
Enchanted creature gets +1/+1.
When enchanted creature dies, return that card to its owner's hand.

, Sacrifice this artifact: Draw a card.
, Sacrifice this artifact: Return target creature to its owner's hand. Draw a card. Activate only as a sorcery.

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

Equipped creature has ": This creature deals 1 damage to any target."
Equip (: Attach to target creature you control. Equip only as a sorcery.)

At the beginning of your upkeep, you gain 1 life.
, Sacrifice this artifact: Draw a card.