Boxing Day

This spell can't be countered. Counter target noncreature spell.

Flash (You may cast this spell any time you could cast an instant.) Evolve (Whenever a creature enters the battlefield under your control, if that ...

Whenever you tap a nonland permanent for mana, add one mana of any type that permanent produced. {5}{G}{U}: Look at the top five cards of your libr...

Whenever you tap a nonland permanent for mana, add one mana of any type that permanent produced. {5}{G}{U}: Look at the top five cards of your libr...

This spell can't be countered. Flying Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target. Whenever a player casts an insta...

Whenever you tap a nonland permanent for mana, add one mana of any type that permanent produced. {5}{G}{U}: Look at the top five cards of your libr...

Other Merfolk you control get +1/+1.

Flying Crackling Drake's power is equal to the total number of instant and sorcery cards you own in exile and in your graveyard. When Crackling D...

Instant and sorcery spells you cast cost {1} less to cast.

This spell can't be countered. You may have Altered Ego enter the battlefield as a copy of any creature on the battlefield, except it enters with ...

Tap another untapped Merfolk you control: Kumena, Tyrant of Orazca can't be blocked this turn. Tap three untapped Merfolk you control: Draw a card...

Search your library for an instant card with mana value 3, reveal it, and put it into your hand. Then repeat this process for instant cards with ma...

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1...

Counter target spell. You gain 5 life.

Elusive Krasis can't be blocked. Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toug...

Counter target creature spell. Essence Backlash deals damage equal to that spell's power to its controller.

Counter target spell. At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.

Flying, haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Flying At the beginning of your upkeep, each player reveals the top card of their library, loses life equal to that card's mana value, then puts i...

Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana ...

Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana. {T}:...

{1}{U}{B}: Whenever a card is put into an opponent's graveyard from anywhere this turn, that player loses 1 life. {2}{U}{B}: Target player mills t...

At the beginning of combat on your turn, put a +1/+1 counter on target creature you control. Then if that creature has three or more +1/+1 counters...

When Reflector Mage enters the battlefield, return target creature an opponent controls to its owner's hand. That creature's owner can't cast spell...