Time Spiral

{0}: This creature gets -1/-0 and gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.)

All Sliver creatures have "Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature."

{2}{B}, {T}, Discard a card: Each other player loses 2 life. You gain life equal to the life lost this way.

Discard a card: This creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

Target creature gets +1/+0, becomes black, and gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.) Flashbac...

Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Until end of turn...

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Target creature g...

Flying Shadow (This creature can block or be blocked by only creatures with shadow.) {B}{B}: Creatures with shadow get +1/+0 until end of turn and ...

Destroy target creature with toughness 3 or less. Flashback {5}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Each player loses 1 life, discards a card, sacrifices a creature of their choice, then sacrifices a land of their choice.

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

When you cast a creature spell, sacrifice this creature.

Flying {1}{B}, Exile this creature: Create a 1/2 black Bat creature token with flying. It has "{1}{B}, Sacrifice this token: Return an exiled card ...

Flying {2}: Search your library for a Dragon permanent card and put it into your graveyard. If you do, Scion of the Ur-Dragon becomes a copy of tha...

At the beginning of your upkeep, tap this creature unless you pay 2 life.

Target player reveals their hand and the top card of their library. You choose a card revealed this way. That player puts the chosen card on the bo...

Destroy target nonblack creature that entered since your last turn ended.

All Slivers have "At the beginning of your upkeep, this permanent deals 1 damage to you."

When this creature enters, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to yo...

Destroy target creature. Its controller loses life equal to its power plus its toughness. Suspend 5—{1}{B} (Rather than cast this card from your ha...

First strike When this creature enters, you may reveal X black cards in your hand. If you do, target creature gets -X/-X until end of turn. Madness...

Haste Shadow (This creature can block or be blocked by only creatures with shadow.) Whenever another creature is put into your graveyard from the b...

Whenever you cast an artifact spell, you may search your graveyard, hand, and/or library for a card with the same name as that spell and put it ont...