Boxing Day

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) {2}{R}{W}: Boros Challenger gets +1/+1...

Flying Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) At the beginning of combat on y...

When Hunted Witness dies, create a 1/1 white Soldier creature token with lifelink.

Whenever Haazda Marshal and at least two other creatures attack, create a 1/1 white Soldier creature token with lifelink.

Whenever Ornery Goblin blocks or becomes blocked by a creature, Ornery Goblin deals 1 damage to that creature.

Target creature gets +1/+1 and gains haste until end of turn. Jump-start (You may cast this card from your graveyard by discarding a card in additi...

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) At the beginning of combat on your tur...

Whenever a creature you control deals combat damage to a player, that player loses the game.

Enchant land When Urban Utopia enters the battlefield, draw a card. Enchanted land has "{T}: Add one mana of any color."

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color....

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color....

Flying When Watcher in the Mist enters the battlefield, surveil 2. (Look at the top two cards of your library, then put any number of them into you...

Defender

Whenever Vedalken Mesmerist attacks, target creature an opponent controls gets -2/-0 until end of turn.

Return target creature to its owner's hand. Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Counter target spell. Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Return X target creatures of the creature type of your choice to their owner's hand.

{2}{U}: Target creature can't be blocked this turn.

Destroy target creature with toughness 4 or greater.

{2}{U}, {T}: You may cast an instant or sorcery spell from your hand without paying its mana cost.

Flying Whenever Nightveil Sprite attacks, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Trample Whenever you cast an instant or sorcery spell, Erratic Cyclops gets +X/+0 until end of turn, where X is that spell's mana value.

Cosmotronic Wave deals 1 damage to each creature your opponents control. Creatures your opponents control can't block this turn.