Silver Wyvern

Flying
{U}: Change the target of target spell or ability that targets only this creature. The new target must be a creature.

Skyline Cascade

This land enters tapped.
When this land enters, target creature an opponent controls doesn't untap during its controller's next untap step.
{T}: Add {U}.

Exhaustion

Creatures and lands target opponent controls don't untap during their next untap step.

Gridlock

Rhystic Deluge

{U}: Tap target creature unless its controller pays {1}.

Spiketail Drake

Flying
Sacrifice this creature: Counter target spell unless its controller pays {3}.

Spiketail Drakeling

Flying
Sacrifice this creature: Counter target spell unless its controller pays {2}.

Jace, Unraveler of Secrets

+1: Scry 1, then draw a card.
−2: Return target creature to its owner's hand.
−8: You get an emblem with "Whenever an opponent casts their first spell each turn, counter that spell."

Gravitational Shift

Creatures with flying get +2/+0.
Creatures without flying get -2/-0.

Guile

This creature can't be blocked except by three or more creatures.
If a spell or ability you control would counter a spell, instead exile that spell and you may play that card without paying its mana cost.
When Guile is put into a graveyard from anywhere, shuffle it into its owner's library.

Wall of Tears

Defender (This creature can't attack.)
Whenever this creature blocks a creature, return that creature to its owner's hand at end of combat.

Island

Persuasion

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
You control enchanted creature.

Sphinx of Magosi

Flying
{2}{U}: Draw a card, then put a +1/+1 counter on this creature.

Sleep

Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.

Torrent Elemental

Flying
Whenever this creature attacks, tap all creatures defending player controls.
{3}{B/G}{B/G}: Put this card from exile onto the battlefield tapped. Activate only as a sorcery.

Theft of Dreams

Draw a card for each tapped creature target opponent controls.

Siren's Call

Cast this spell only during an opponent's turn, before attackers are declared.
Creatures the active player controls attack this turn if able.
At the beginning of the next end step, destroy all non-Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.

Cloud Spirit

Flying
This creature can block only creatures with flying.

Flood

{U}{U}: Tap target creature without flying.

Mercurial Kite

Flying
Whenever this creature deals combat damage to a creature, tap that creature. That creature doesn't untap during its controller's next untap step.

Legerdemain

Exchange control of target artifact or creature and another target permanent that shares one of those types with it. (This effect lasts indefinitely.)

Spire Owl

Flying
When this creature enters, look at the top four cards of your library, then put them back in any order.