Boxing Day

Whenever another Goblin you control becomes blocked, sacrifice it. If you do, it deals 4 damage to each creature blocking it. Sacrifice two Mountai...

Whenever another creature you control enters, this creature gets +2/+2 until end of turn.

Flash (You may cast this spell any time you could cast an instant.) Trample

All Slivers have "When this permanent enters, destroy target artifact or enchantment."

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) Whenever this creature at...

{G}, {T}, Discard a card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Suspend 10—{R} Sacrifice an artifact, creature, or land: Remove a time counter from this card. Activate only if this card is suspended.

Whenever this creature blocks or becomes blocked by a nonblack creature, destroy that creature at end of combat. Madness {B}{B} (If you discard thi...

Sacrifice this creature: It deals 2 damage to target creature with flying. That creature loses flying until end of turn.

Whenever this creature deals combat damage to a player, that player loses 2 life at the beginning of their next draw step unless they pay {2} befor...

All Slivers are colorless.

All Slivers have "{T}: Add one mana of any color."

All Sliver creatures have double strike.

All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it." (It must survive the damage to get the counter.)

Damage that would reduce your life total to less than 1 reduces it to 1 instead. Morph {R}{R} (You may cast this card face down as a 2/2 creature f...

Flash (You may cast this spell any time you could cast an instant.) Defender This creature can block an additional creature each combat.

{1}{R}, {T}, Discard a card: Target creature gets +1/-1 and gains haste until end of turn.

Flying {3}{W}: Exile this creature, then return it to the battlefield under its owner's control.

Flying {T}: This creature deals 1 damage to any target. Morph {U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up a...

Echo {2}{R}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you p...

All Sliver creatures have haste. All Slivers have "{1}, Sacrifice this permanent: Target Sliver creature gets +2/+2 until end of turn."

Echo {5}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay ...

Morph—Return two Islands you control to their owner's hand. (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time f...

Shadow (This creature can block or be blocked by only creatures with shadow.) When this creature enters, exile another target creature with shadow....