Boxing Day

All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it." (The damage is dealt before the counter is put on.)

Destroy all enchantments target player controls.

Enchant creature Enchanted creature has shroud. (It can't be the target of spells or abilities.) When Aspect of Mongoose is put into a graveyard fr...

You may have creatures you control assign their combat damage this turn as though they weren't blocked.

Target creature with flying loses flying until end of turn. Crash Landing deals damage to that creature equal to the number of Forests you control.

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters the battlefield with a +1/+1 counter on it.) Creatures with power le...

({R/G} can be paid with either {R} or {G}.) Trample; haste; shroud (This creature can't be the target of spells or abilities.)

This spell can't be countered. Destroy target artifact or land.

Ulasht, the Hate Seed enters the battlefield with a +1/+1 counter on it for each other red creature you control and a +1/+1 counter on it for each ...

Savage Twister deals X damage to each creature.

At the beginning of your upkeep, Rumbling Slum deals 1 damage to each player.

Whenever a player activates an ability that isn't a mana ability, Burning-Tree Shaman deals 1 damage to that player.

Players don't lose unspent mana as steps and phases end.

Flash (You may cast this spell any time you could cast an instant.) Reach (This creature can block creatures with flying.)

{T}: You may put a land card from your hand onto the battlefield. Activate this ability only any time you could cast a sorcery.

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

Artifacts and lands enter the battlefield tapped.

You may have Rhox assign its combat damage as though it weren't blocked. {2}{G}: Regenerate Rhox. (The next time this creature would be destroyed t...

Search your library for a basic land card and put that card onto the battlefield tapped. Then shuffle your library.

Creatures you control have trample. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)

Enchant land Whenever enchanted land is tapped for mana, its controller adds an additional {G}{G}.

First strike, forestwalk, vigilance (This creature deals combat damage before creatures without first strike, it can't be blocked as long as defend...

Target creature gets +7/+7 until end of turn.

Enchant creature All creatures able to block enchanted creature do so.