Boxing Day

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)

When this creature dies, create a 1/1 colorless Thopter artifact creature token with flying.

Flying If you would lose the game, instead exile this creature and your life total becomes equal to your starting life total.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Trample, haste

{T}, Sacrifice an artifact: This creature deals 2 damage to each opponent.

When this creature enters, you may return target artifact to its owner's hand.

Sacrifice an artifact or creature: Put a +1/+1 counter on this creature. Activate only as a sorcery.

Revolt — When this creature enters, if a permanent left the battlefield under your control this turn, destroy target tapped creature an opponent co...

Flying When this creature enters, creatures you control get +1/+1 and gain vigilance until end of turn.

Revolt — When this creature enters, if a permanent left the battlefield under your control this turn, create a 1/1 colorless Servo artifact creatur...

{7}: Create a token that's a copy of target artifact. That token gains haste. Exile it at the beginning of the next end step.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Hexproof (This...

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) This creature ...

{1}{B}: This creature gets +1/+1 until end of turn.

This creature can't be blocked by artifact creatures.

Menace

Trample At the beginning of combat on your turn, if you control an Ajani planeswalker, put a +1/+1 counter on this creature.

Trample Whenever this creature enters or attacks, you get {E} (an energy counter) for each creature you control. Pay {E}: This creature gets +1/+1 ...

Flying When this creature enters, you get six {E} (energy counters). Pay {E}{E}{E}{E}: Return this creature to its owner's hand.

Trample When this creature enters, you get {E} (an energy counter). Whenever this creature attacks, you may pay {E}. If you do, it gets +2/+0 until...

Tap an untapped creature you control: This creature gains flying until end of turn.

All Sliver creatures have first strike.

{1}{U}, {T}: This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay {U} ...