Time Spiral

Target player sacrifices half the permanents they control, rounded down. Suspend 2—{2}{B}{B} (Rather than cast this card from your hand, you may p...

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Suspend 5—{B} (Rather than cast this card from your han...

Return target black creature card from your graveyard to your hand. Madness {0} (If you discard this card, discard it into exile. When you do, cast...

All Slivers have "Sacrifice this permanent: Add {B}{B}."

Destroy target tapped creature.

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...

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...

Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target.

All Slivers are colorless.

If damage would be dealt to Dralnu, Lich Lord, sacrifice that many permanents instead. {T}: Target instant or sorcery card in your graveyard gains ...

All Slivers have "{T}: Choose a card name. Target opponent reveals a card at random from their hand. If that card has the chosen name, that player ...

{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."

{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...

When you cast a creature spell, sacrifice Skittering Monstrosity.