Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

Whenever another creature enters, you gain 1 life.

Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Target creature gets +1/+1 until end of turn for each creature you control.

Target creature you control gains protection from the color of your choice until end of turn.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Changeling (This card is every creature type.)
Tap an untapped creature you control: This creature gains flying until end of turn.

Outnumber deals damage to target creature equal to the number of creatures you control.

Target creature you control gets +2/+0 until end of turn.
Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Tarfire deals 2 damage to any target.

Kicker (You may pay an additional as you cast this spell.)
Burst Lightning deals 2 damage to any target. If this spell was kicked, it deals 4 damage instead.

: You may put a land card from your hand onto the battlefield.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Flame Slash deals 4 damage to target creature.

Target creature becomes red and gains haste until end of turn. (It can attack and this turn.)
Draw a card.

Enchant creature
When this Aura enters, target creature can't block this turn.
Enchanted creature gets +1/+1 and has haste.

Whenever another creature dies, you may gain 1 life.

, Discard a card: Draw a card.

Enchant Forest
As this Aura enters, choose a color.
Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

Sunlance deals 3 damage to target nonwhite creature.

Destroy target artifact.

Fiery Impulse deals 2 damage to target creature.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, Fiery Impulse deals 3 damage instead.

As an additional cost to cast this spell, discard a card or pay .
Lightning Axe deals 5 damage to target creature.

Draw two cards, then discard two cards.

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

Enchant creature
Enchanted creature gets +1/+1 for each enchantment you control and has first strike.

Whenever another creature enters, you gain 1 life.

Add .

You gain 1 life for each player.
Haunt (When this spell card is put into a graveyard after resolving, exile it haunting target creature.)
When the creature this card haunts dies, you gain 1 life for each player.

Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Draw a card.

Untap target creature. Prevent all damage that would be dealt to it this turn.
Cycling (, Discard this card: Draw a card.)

Target creature gains trample until end of turn.
Draw a card.

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional .

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.
Draw a card at the beginning of the next turn's upkeep.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Discard any number of cards. Creatures you control get +0/+1 until end of turn for each card discarded this way.