Ageless Entity

Whenever you gain life, put that many +1/+1 counters on this creature.

Serene Steward

Whenever you gain life, you may pay {W}. If you do, put a +1/+1 counter on target creature.

Wall of Vines

Defender (This creature can't attack.)
Reach (This creature can block creatures with flying.)

Kangee, Sky Warden

Flying, vigilance
Whenever Kangee attacks, attacking creatures with flying get +2/+0 until end of turn.
Whenever Kangee blocks, blocking creatures with flying get +0/+2 until end of turn.

Tidal Flats

{U}{U}: For each attacking creature without flying, its controller may pay {1}. If that player doesn't, creatures you control blocking that creature gain first strike until end of turn.

Stormtide Leviathan

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
All lands are Islands in addition to their other types.
Creatures without flying or islandwalk can't attack.

Dromoka Dunecaster

{1}{W}, {T}: Tap target creature without flying.

Ice Floe

You may choose not to untap this land during your untap step.
{T}: Tap target creature without flying that's attacking you. It doesn't untap during its controller's untap step for as long as this land remains tapped.

Wall of Tanglecord

Defender
{G}: This creature gains reach until end of turn. (It can block creatures with flying.)

Roots of Life

As this enchantment enters, choose Island or Swamp.
Whenever a land of the chosen type an opponent controls becomes tapped, you gain 1 life.

Cephalid Retainer

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

Sunbond

Enchant creature
Enchanted creature has "Whenever you gain life, put that many +1/+1 counters on this creature."

Tidal Surge

Tap up to three target creatures without flying.

Silhana Ledgewalker

Hexproof (This creature can't be the target of spells or abilities your opponents control.)
This creature can't be blocked except by creatures with flying.

Treetop Scout

This creature can't be blocked except by creatures with flying.

Quicksand

{T}: Add {C}.
{T}, Sacrifice this land: Target attacking creature without flying gets -1/-2 until end of turn.

Signal Pest

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)
This creature can't be blocked except by creatures with flying or reach.

Wall of Resistance

Defender (This creature can't attack.)
Flying
At the beginning of each end step, if this creature was dealt damage this turn, put a +0/+1 counter on it.

Well of Lost Dreams

Whenever you gain life, you may pay {X}, where X is less than or equal to the amount of life you gained. If you do, draw X cards.

Leonin Bladetrap

Flash (You may cast this spell any time you could cast an instant.)
{2}, Sacrifice this artifact: It deals 2 damage to each attacking creature without flying.

Inniaz, the Gale Force

Flying
{2}{W/U}: Attacking creatures with flying get +1/+1 until end of turn. ({W/U} can be paid with either {W} or {U}.)
Whenever three or more creatures you control with flying attack, each player gains control of a nonland permanent of your choice controlled by the player to their right.

Wall of Denial

Defender, flying
Shroud (This creature can't be the target of spells or abilities.)

Wind Shear

Attacking creatures with flying get -2/-2 and lose flying until end of turn.

Celestial Unicorn

Whenever you gain life, put a +1/+1 counter on this creature.

Gideon's Company

Whenever you gain life, put two +1/+1 counters on this creature.
{3}{W}: Put a loyalty counter on target Gideon planeswalker.

Barbed Foliage

Whenever a creature attacks you, it loses flanking until end of turn.
Whenever a creature without flying attacks you, this enchantment deals 1 damage to it.

Wall of Swords

Defender (This creature can't attack.)
Flying

Angelic Wall

Hover Barrier

Roots

Enchant creature without flying
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Whip Vine

Defender; reach (This creature can block creatures with flying.)
You may choose not to untap this creature during your untap step.
{T}: Tap target creature with flying blocked by this creature. That creature doesn't untap during its controller's untap step for as long as this creature remains tapped.

Thunder Wall

Defender (This creature can't attack.)
Flying
{U}: This creature gets +1/+1 until end of turn.

Ajani's Pridemate

Trudge Garden

Whenever you gain life, you may pay {2}. If you do, create a 4/4 green Fungus Beast creature token with trample.

Wall of Air

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Sandwurm Convergence

Creatures with flying can't attack you or planeswalkers you control.
At the beginning of your end step, create a 5/5 green Wurm creature token.

Majestic Myriarch

Majestic Myriarch's power and toughness are each equal to twice the number of creatures you control.
At the beginning of each combat, this creature gains flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

Orchard Spirit

This creature can't be blocked except by creatures with flying or reach.

Elven Riders

This creature can't be blocked except by Walls and/or creatures with flying.

Tanglesap

Prevent all combat damage that would be dealt this turn by creatures without trample.

Twinblade Paladin

Whenever you gain life, put a +1/+1 counter on this creature.
As long as you have 25 or more life, this creature has double strike. (It deals both first-strike and regular combat damage.)

Pitfall Trap

If exactly one creature is attacking, you may pay {W} rather than pay this spell's mana cost.
Destroy target attacking creature without flying.

Wall of One Thousand Cuts

Defender, flying
{W}: This creature can attack this turn as though it didn't have defender.

Scarecrow

{6}, {T}: Prevent all damage that would be dealt to you this turn by creatures with flying.

Merfolk Seastalkers

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
{2}{U}: Tap target creature without flying.

One-Eyed Scarecrow

Defender
Creatures with flying your opponents control get -1/-0.

Light of Promise

Attended Healer

Whenever you gain life for the first time each turn, create a 1/1 white Cat creature token.
{2}{W}: Another target Cleric gains lifelink until end of turn.

Teferi's Moat

As this enchantment enters, choose a color.
Creatures of the chosen color without flying can't attack you.

Verity Circle

Whenever a creature an opponent controls becomes tapped, if it isn't being declared as an attacker, you may draw a card.
{4}{U}: Tap target creature without flying.

Ageless Sentinels

Defender (This creature can't attack.)
Flying
When this creature blocks, it becomes a Bird Giant, and it loses defender. (It's no longer a Wall. This effect lasts indefinitely.)

Lurking Roper

This creature doesn't untap during your untap step.
Whenever you gain life, untap this creature.

Treetop Bracers

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature gets +1/+1 and can't be blocked except by creatures with flying.

Wave Elemental

{U}, {T}, Sacrifice this creature: Tap up to three target creatures without flying.

Nykthos Paragon

Whenever you gain life, you may put that many +1/+1 counters on each creature you control. Do this only once each turn.

Grand Master of Flowers

As long as Grand Master of Flowers has seven or more loyalty counters on him, he's a 7/7 Dragon God creature with flying and indestructible.
+1: Target creature without first strike, double strike, or vigilance can't attack or block until your next turn.
+1: Search your library and/or graveyard for a card named Monk of the Open Hand, reveal it, and put it into your hand. If you search your library this way, shuffle.

Trelasarra, Moon Dancer

Whenever you gain life, put a +1/+1 counter on Trelasarra and scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Aboshan, Cephalid Emperor

Tap an untapped Octopus you control: Tap target permanent.
{U}{U}{U}: Tap all creatures without flying.

Skyblinder Staff

Equipped creature gets +1/+0 and can't be blocked by creatures with flying.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Phelddagrif

{G}: Phelddagrif gains trample until end of turn. Target opponent creates a 1/1 green Hippo creature token.
{W}: Phelddagrif gains flying until end of turn. Target opponent gains 2 life.
{U}: Return Phelddagrif to its owner's hand. Target opponent may draw a card.

Wing Storm

Wing Storm deals damage to each player equal to twice the number of creatures that player controls with flying.

Kangee's Lieutenant

Flying
Whenever this creature attacks, attacking creatures with flying get +1/+1 until end of turn.
Encore {5}{W} ({5}{W}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Island Sanctuary

If you would draw a card during your draw step, instead you may skip that draw. If you do, until your next turn, you can't be attacked except by creatures with flying and/or islandwalk.

Cradle of Vitality

Whenever you gain life, you may pay {1}{W}. If you do, put a +1/+1 counter on target creature for each 1 life you gained.

Illusionary Wall

Defender, flying, first strike
Cumulative upkeep {U} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Sunweb

Defender (This creature can't attack.)
Flying
This creature can't block creatures with power 2 or less.

Gravitational Shift

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

Wall of Shards

Defender, flying
Cumulative upkeep—An opponent gains 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Magus of the Moat

Deluge

Trapped in the Tower

Enchant creature without flying
Enchanted creature can't attack or block, and its activated abilities can't be activated.

Dawn of Hope

Whenever you gain life, you may pay {2}. If you do, draw a card.
{3}{W}: Create a 1/1 white Soldier creature token with lifelink.

Voice of the Blessed

Whenever you gain life, put a +1/+1 counter on this creature.
As long as this creature has four or more +1/+1 counters on it, it has flying and vigilance.
As long as this creature has ten or more +1/+1 counters on it, it has indestructible.

Chasm Skulker

Whenever you draw a card, put a +1/+1 counter on this creature.
When this creature dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on this creature. (They can't be blocked as long as defending player controls an Island.)

Fog Bank

Defender (This creature can't attack.)
Flying
Prevent all combat damage that would be dealt to and dealt by this creature.

Winter Blast

Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying.

Pit Trap

{2}, {T}, Sacrifice this artifact: Destroy target attacking creature without flying. It can't be regenerated.

Serra Aviary

Whiptongue Hydra

Reach
When this creature enters, destroy all creatures with flying. Put a +1/+1 counter on this creature for each creature destroyed this way.

Snow Fortress

Defender (This creature can't attack.)
{1}: This creature gets +1/+0 until end of turn.
{1}: This creature gets +0/+1 until end of turn.
{3}: This creature deals 1 damage to target creature without flying that's attacking you.

Consulate Skygate

Defender
Reach (This creature can block creatures with flying.)

Flood

Cleric Class

(Gain the next level as a sorcery to add its ability.)
If you would gain life, you gain that much life plus 1 instead.
{3}{W}: Level 2
Whenever you gain life, put a +1/+1 counter on target creature you control.
{4}{W}: Level 3
When this Class becomes level 3, return target creature card from your graveyard to the battlefield. You gain life equal to that creature's toughness.

Kaldra Compleat

Living weapon
Indestructible
Equipped creature gets +5/+5 and has first strike, trample, indestructible, haste, and "Whenever this creature deals combat damage to a creature, exile that creature."
Equip {7}

Treetop Rangers

Mindbender Spores

Defender (This creature can't attack.)
Flying
Whenever this creature blocks a creature, put four fungus counters on that creature. The creature gains "This creature doesn't untap during your untap step if it has a fungus counter on it" and "At the beginning of your upkeep, remove a fungus counter from this creature."

Wall of Reverence

Defender, flying
At the beginning of your end step, you may gain life equal to the power of target creature you control.