This spell costs more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost.
Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Vigilance, indestructible
Bushido 5 (Whenever this creature blocks or becomes blocked, it gets +5/+5 until end of turn.)

At the beginning of each player's upkeep, this enchantment deals X damage to that player, where X is 4 minus the number of cards in their hand.

Flying
Whenever this creature deals combat damage to a player, roll a d20. When you do, put any number of target creature cards with total mana value X or less from graveyards onto the battlefield under your control, where X is the result.

, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

Exile target creature. Its controller gains life equal to its power.

Partner with Frodo, Adventurous Hobbit (When this creature enters, target player may put Frodo into their hand from their library, then shuffle.)
At the beginning of combat on your turn, create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")
Activated abilities of Foods you control cost less to activate.

Counter target spell.
At the beginning of your next upkeep, pay . If you don't, you lose the game.

Grand Summon — : Add one mana of any color. When you next cast a creature spell this turn, that creature enters with two additional +1/+1 counters on it.
Whenever another permanent you control is put into a graveyard from the battlefield, if it had one or more counters on it, you may put that number of +1/+1 counters on target creature.

Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.

: Destroy target tapped nonblack creature. Activate only during your turn, before attackers are declared.

: Add .
: Each player gains control of all creatures they own.

(: Add .)

You may tap or untap target artifact, creature, or land.

All Rats have fear.
, Sacrifice a Rat: Create X 1/1 black Rat creature tokens, where X is the number of Rats you control.

When this artifact enters, each opponent sacrifices three creatures of their choice.
At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control. It's a Phyrexian in addition to its other types.

If you would draw a card while your library has no cards in it, you win the game instead.
+1: Target player mills two cards. Draw a card.
−8: Draw seven cards. Then if your library has no cards in it, you win the game.

Deathtouch
When this creature enters, the Ring tempts you.
Whenever the Ring tempts you, put a +1/+1 counter on each Wraith you control.
A deck can have up to nine cards named Nazgûl.

You may look at the top card of your library any time.
You may play lands and cast Bird spells from the top of your library.
If a land or Bird you control entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.