Time Spiral

Reach When Penumbra Spider dies, create a 2/4 black Spider creature token with reach.

{T}: Add {C}. {1}, {T}: Add one mana of any color.

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

{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.)

Flying Sacrifice Spiketail Drakeling: Counter target spell unless its controller pays {2}.

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.

Slipstream Serpent can't attack unless defending player controls an Island. When you control no Islands, sacrifice Slipstream Serpent. Morph {5}{U}...

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

Echo {1}{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 ...

Flying As long as Castle Raptors is untapped, it gets +0/+2.

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

When Dream Stalker enters the battlefield, return a permanent you control to its owner's hand.

Counter target spell.

Flying When Cloudchaser Kestrel enters the battlefield, destroy target enchantment. {W}: Target permanent becomes white until end of turn.

Draw a card. Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Shadow (This creature can block or be blocked by only creatures with shadow.) Whenever Looter il-Kor deals damage to an opponent, draw a card, then...

Destroy target artifact or enchantment with converted mana cost X. It can't be regenerated. You gain X life.

Echo {3}{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 ...

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

All Slivers have "{T}: Target player puts the top card of their library into their graveyard."

Flying {U}, {T}, Discard a card: Return target permanent you control to its owner's hand.

Destroy target artifact or land. Suspend 4—{1}{R} (Rather than cast this card from your hand, you may pay {1}{R} and exile it with four time counte...

Suspend 5—{G} (Rather than cast this card from your hand, you may pay {G} and exile it with five time counters on it. At the beginning of your upke...