Boxing Day

Flash When Voracious Greatshark enters the battlefield, counter target artifact or creature spell.

Whenever you cast a noncreature spell, create an X/X blue Shark creature token with flying, where X is that spell's converted mana cost. Cycling {X...

Create a token that's a copy of target permanent. If {R}{G} was spent to cast this spell, instead create a token that's a copy of that permanent, e...

Defender (This creature can't attack.) Prevent all damage that would be dealt to Wall of Vapor by creatures it's blocking.

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Take an extra turn after this one.

Mutate {1}{W/U}{R}{R} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the cre...

Destroy X target Mountains. Volcanic Eruption deals damage to each creature and each player equal to the number of Mountains put into a graveyard t...

Mutate {3}{R/G}{U}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the cre...

Mutate {2}{U/B}{G}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the cre...

Destroy X target Mountains. Volcanic Eruption deals damage to each creature and each player equal to the number of Mountains put into a graveyard t...

Destroy X target Mountains. Volcanic Eruption deals damage to each creature and each player equal to the number of Mountains put into a graveyard t...

Rielle, the Everwise gets +1/+0 for each instant and sorcery card in your graveyard. Whenever you discard one or more cards for the first time each...

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...

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

When Uro enters the battlefield, sacrifice it unless it escaped. Whenever Uro enters the battlefield or attacks, you gain 3 life and draw a card, t...

Flying, lifelink Whenever you draw a card, Dream Trawler gets +1/+0 until end of turn. Whenever Dream Trawler attacks, draw a card. Discard a card:...

Menace When Atris, Oracle of Half-Truths enters the battlefield, target opponent looks at the top three cards of your library and separates them in...

Whenever you cast your first spell during each opponent's turn, draw a card.

Flash Flying Spells you cast with converted mana cost 5 or greater cost {1} less to cast and can't be countered.

When Thassa's Oracle enters the battlefield, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on to...