Sentinels of Glen Elendra

Vaporkin

Flying
Vaporkin can block only creatures with flying.

Dramatic Reversal

Untap all nonland permanents you control.

Island

Teferi's Curse

Enchant artifact or creature
Enchanted permanent has phasing. (It phases in or out before its controller untaps during each of their untap steps. While it's phased out, it's treated as though it doesn't exist.)

Silent Observer

Archive Dragon

Flying
Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
When Archive Dragon enters, scry 2.

Dispel

Fate Foretold

Enchant creature
When Fate Foretold enters, draw a card.
When enchanted creature dies, its controller draws a card.

Ringskipper

Flying
When Ringskipper dies, clash with an opponent. If you win, return Ringskipper to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Paralyzing Grasp

Enchant creature
Enchanted creature doesn't untap during its controller's untap step.

Fortress Crab

Kraken Hatchling

Catalog

Cloud Manta

Windrider Eel

Flying
Landfall — Whenever a land you control enters, Windrider Eel gets +2/+2 until end of turn.

Elgaud Shieldmate

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
As long as Elgaud Shieldmate is paired with another creature, both creatures have hexproof. (They can't be the targets of spells or abilities your opponents control.)

Glintwing Invoker

{7}{U}: Glintwing Invoker gets +3/+3 and gains flying until end of turn.

Dukhara Peafowl

{U}: Dukhara Peafowl gains flying until end of turn.

Nimble Innovator

When Nimble Innovator enters, draw a card.

Fleeting Distraction

Target creature gets -1/-0 until end of turn.
Draw a card.

Breaching Hippocamp

Flash (You may cast this spell any time you could cast an instant.)
When Breaching Hippocamp enters, untap another target creature you control.

Ojutai's Summons

Create a 2/2 blue Djinn Monk creature token with flying.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Emmessi Tome

{5}, {T}: Draw two cards, then discard a card.

Vanguard's Shield

Equipped creature gets +0/+3 and can block an additional creature each combat.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Ingenious Prodigy

Skulk (This creature can't be blocked by creatures with greater power.)
Ingenious Prodigy enters with X +1/+1 counters on it.
At the beginning of your upkeep, if Ingenious Prodigy has one or more +1/+1 counters on it, you may remove a +1/+1 counter from it. If you do, draw a card.

Stitchwing Skaab

Flying
{1}{U}, Discard two cards: Return Stitchwing Skaab from your graveyard to the battlefield tapped.

Ether Well

Put target creature on top of its owner's library. If that creature is red, you may put it on the bottom of its owner's library instead.

Eternity Snare

Enchant creature
When Eternity Snare enters, draw a card.
Enchanted creature doesn't untap during its controller's untap step.

Paperfin Rascal

When Paperfin Rascal enters, clash with an opponent. If you win, put a +1/+1 counter on Paperfin Rascal. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Spectral Flight

Enchant creature
Enchanted creature gets +2/+2 and has flying.

Cancel

Zephyr Net

Enchant creature
Enchanted creature has defender and flying.

Silburlind Snapper

Silburlind Snapper can't attack unless you've cast a noncreature spell this turn.

Stormkeld Prowler

Whenever you cast a spell with mana value 5 or greater, put two +1/+1 counters on Stormkeld Prowler.