Boxing Day

Flying (This creature can't be blocked except by creatures with flying or reach.) {R}: Shivan Dragon gets +1/+0 until end of turn.

First strike (This creature deals combat damage before creatures without first strike.) {R}: Sandstone Warrior gets +1/+0 until end of turn.

Whenever Rogue Kavu attacks alone, it gets +2/+0 until end of turn.

{T}: Target attacking creature gets +1/+1 until end of turn.

Haste (This creature can attack and {T} as soon as it comes under your control.)

{T}: Orcish Artillery deals 2 damage to any target and 3 damage to you.

Ogre Taskmaster can't block.

Haste (This creature can attack and {T} as soon as it comes under your control.)

{W}: Honor Guard gets +0/+1 until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Other Goblin creatures get +1/+1 and have mountainwalk. (They can't be blocked as long as defending player controls a Mountain.)

Haste (This creature can attack and {T} as soon as it comes under your control.)

Goblin Brigand attacks each combat if able.

{R}: Flowstone Shambler gets +1/-1 until end of turn.

When Anarchist enters the battlefield, you may return target sorcery card from your graveyard to your hand.

Swarm of Rats's power is equal to the number of Rats you control.

Spineless Thug can't block.

When Serpent Warrior enters the battlefield, you lose 3 life.

{T}: Destroy target tapped creature.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)