Put a +1/+1 counter on target creature you control, then double the number of +1/+1 counters on that creature.

Target creature you control gets +1/+0 until end of turn. It fights target creature an opponent controls. When excess damage is dealt to the creature an opponent controls this way, destroy up to one target noncreature artifact with mana value 3 or less.

Flying

When this enchantment enters, exile up to one target nonland permanent an opponent controls until this enchantment leaves the battlefield. You gain 2 life.

Shuffle your library, then mill four cards. Put each creature card milled this way onto the battlefield. They gain haste. At the beginning of the next end step, return those creatures to their owner's hand.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Sneak (You may cast this spell for if you also return an unblocked attacker you control to hand during the declare blockers step.)
Look at the top eight cards of your library. Put up to two creature cards with total mana value 6 or less from among them onto the battlefield and the rest on the bottom of your library in a random order.

This creature enters with a +1/+1 counter on it if an opponent lost life this turn.
: This creature gains menace until end of turn. (It can't be blocked except by two or more creatures.)

: Add .
: Add one mana of any color. Spend this mana only to cast a Hero spell or to activate an ability of a Hero source.
, : Look at the top three cards of your library. You may reveal a Hero card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Whenever a player casts a spell that targets Speedball, he gets +2/+2 until end of turn. You may choose new targets for that spell.

Flash
When this creature enters, untap another target creature you control. If that creature is a Bear, put a +1/+1 counter on it.

When this Equipment enters, manifest dread, then attach this Equipment to that creature. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)
Equipped creature gets +2/+1.
Equip

When this Spacecraft enters, draw two cards, then discard a card.
Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 8+.)
8+ | Flying

Flash
Enchant creature
Enchanted creature gets -5/-0 and loses all abilities.

Target creature gets +3/+2 until end of turn. Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Each opponent discards a card. You create a 1/1 black and green Pest creature token with "Whenever this token attacks, you gain 1 life."

Whenever this creature becomes tapped, create a 1/1 blue and black Faerie creature token with flying.

, : Target creature gets +1/+1 until end of turn. Activate only as a sorcery.

This creature gets +2/+0 as long as you control another Warrior.

Lifelink
Disappear — When this creature enters, if a permanent left the battlefield under your control this turn, create a 1/1 black Ninja creature token.

Web-slinging (You may cast this spell for if you also return a tapped creature you control to its owner's hand.)
When Spider-Man enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.