Boxing Day

Haste Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Prevent all noncombat damage tha...

Vigilance Whenever this creature attacks, it deals 1 damage to each creature defending player controls.

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

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

Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.)

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

During your turn, this creature has first strike.

Defender Whenever you cast an instant or sorcery spell, this creature deals 1 damage to each opponent.

Whenever you cast a creature spell, draw a card.

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...

Whenever this creature is dealt damage, it deals that much damage to any target. {R/W}: This creature gains first strike until end of turn.

{1}{G}: You may return another creature you control to its owner's hand. If you do, this creature gains indestructible until end of turn.

Shadow (This creature can block or be blocked by only creatures with shadow.) Discard a card: Return this creature to its owner's hand.

Vigilance

Whenever a permanent you control becomes untapped, this creature gets +1/+1 until end of turn.

Whenever you cast a spell that's both green and blue, this creature has base power and toughness 5/3 until end of turn and gains trample until end ...

When this creature enters, if you control two or more Forests, you may gain 3 life. When this creature enters, if you control two or more Islands, ...

This creature doesn't untap during your untap step. Whenever you cast a green spell, you may untap this creature.

Flying {1}{W}, Sacrifice this creature: Destroy target enchantment. Persist (When this creature dies, if it had no -1/-1 counters on it, return it ...

{3}: Target green creature gets +1/+1 until end of turn.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Skulk (This creature can't be blocked by creatures with greater power.) Whenever this creature deals combat damage to a player, you may draw a card...

First strike Creatures and nonbasic lands your opponents control enter tapped.

{1}, {T}: Tap target non-Human creature.