Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying.

Sunburst (This creature enters with a +1/+1 counter on it for each color of mana spent to cast it.)

Create four 1/1 white Dog creature tokens.

Return target creature card with mana value 3 or less from your graveyard to the battlefield. It gains "If this creature would die, exile it instead."
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Visit — Scry 1.

Demonfire deals X damage to any target. If a creature dealt damage this way would die this turn, exile it instead.
Hellbent — If you have no cards in hand, this spell can't be countered and the damage can't be prevented.

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

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
, Sacrifice another creature: You gain life equal to the sacrificed creature's toughness.
, Sacrifice another creature: Exile target nonland permanent. Activate only if you have at least 10 life more than your starting life total.

: Add .
, : Target creature can't be blocked this turn.

Whenever a creature you control enters this turn, put a +1/+1 counter on it and it gains haste until end of turn.
Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

: Target creature gets +1/+1 until end of turn.

Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control. (Each deals damage equal to its power to the other.)

When this creature dies, create a 1/1 colorless Soldier artifact creature token.

Whenever you cast a blue spell, if Hydro-Man is a creature, he gets +1/+1 until end of turn.
At the beginning of your end step, untap Hydro-Man. Until your next turn, he becomes a land and gains ": Add ." (He's not a creature during that time.)

When this creature dies, it deals 3 damage to any target.

: Each player may draw a card, then each player who drew a card this way gains 1 life.

Whenever another artifact you control enters, you may have this artifact become a 2/2 Bird artifact creature with flying until end of turn.
: This artifact becomes a 2/2 Bird artifact creature with flying until end of turn.

First strike
Bloodrush — , Discard this card: Target attacking creature gets +3/+1 and gains first strike until end of turn.

This creature can't attack or block unless an opponent has eight or more cards in their graveyard.
, : Target player mills two cards. (They put the top two cards of their library into their graveyard.)

Tymaret's toughness is equal to your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)
: Exile up to two target cards from graveyards. You gain 1 life for each creature card exiled this way.