Time Spiral

Destroy target artifact. Flashback {G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Defender Aetherflame Wall can block creatures with shadow as though they didn't have shadow. {R}: Aetherflame Wall gets +1/+0 until end of turn.

{0}: Viscid Lemures 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."

Flying, protection from black Suspend 3—{1}{W} (Rather than cast this card from your hand, you may pay {1}{W} and exile it with three time counters...

{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: Trespasser il-Vec 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 tur...

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 ...

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, then sacrifices a land.

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

You gain 2 life for each creature target player controls. Suspend 5—{1}{W} (Rather than cast this card from your hand, you may pay {1}{W} and exile...

When you cast a creature spell, sacrifice Skittering Monstrosity.

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

At the beginning of your upkeep, tap Sangrophage 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 the battlefield since your last turn ended.

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

When Pit Keeper enters the battlefield, if you have four or more creature cards in your graveyard, you may return target creature card from your gr...

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...