Opportunity

Icatian Store

Icatian Store enters tapped.
You may choose not to untap Icatian Store during your untap step.
At the beginning of your upkeep, if Icatian Store is tapped, put a storage counter on it.
{T}, Remove any number of storage counters from Icatian Store: Add {W} for each storage counter removed this way.

Time Warp

Target player takes an extra turn after this one.

Vizzerdrix

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Rewind

Counter target spell. Untap up to four lands.

Nature's Lore

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Dance of Many

When Dance of Many enters, create a token that's a copy of target nontoken creature.
When Dance of Many leaves the battlefield, exile the token.
When the token leaves the battlefield, sacrifice Dance of Many.
At the beginning of your upkeep, sacrifice Dance of Many unless you pay {U}{U}.

Scavenger Folk

{G}, {T}, Sacrifice Scavenger Folk: Destroy target artifact.

Viridian Shaman

When Viridian Shaman enters, destroy target artifact.

Circle of Protection: Black

{1}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

Llanowar Elves

Sand Silos

Sand Silos enters tapped.
You may choose not to untap Sand Silos during your untap step.
At the beginning of your upkeep, if Sand Silos is tapped, put a storage counter on it.
{T}, Remove any number of storage counters from Sand Silos: Add {U} for each storage counter removed this way.

Clone

You may have Clone enter as a copy of any creature on the battlefield.

Energy Flux

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

Thalakos Lowlands

{T}: Add {C}.
{T}: Add {W} or {U}. Thalakos Lowlands doesn't untap during your next untap step.

Arcades Sabboth

Flying
At the beginning of your upkeep, sacrifice Arcades Sabboth unless you pay {G}{W}{U}.
Each untapped creature you control gets +0/+2 as long as it's not attacking.
{W}: Arcades Sabboth gets +0/+1 until end of turn.

Svyelunite Temple

Svyelunite Temple enters tapped.
{T}: Add {U}.
{T}, Sacrifice Svyelunite Temple: Add {U}{U}.

Wall of Vapor

Defender (This creature can't attack.)
Prevent all damage that would be dealt to Wall of Vapor by creatures it's blocking.

Desert Twister

Rampant Growth

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Confiscate

Enchant permanent
You control enchanted permanent.

Breath of Life

Return target creature card from your graveyard to the battlefield.

Resurrection

Memory Lapse

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Remove Soul

Drifting Meadow

Drifting Meadow enters tapped.
{T}: Add {W}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Owl Familiar

Flying
When Owl Familiar enters, draw a card, then discard a card.

Reprisal

Destroy target creature with power 4 or greater. It can't be regenerated.

Circle of Protection: Red

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Quirion Elves

As Quirion Elves enters, choose a color.
{T}: Add {G}.
{T}: Add one mana of the chosen color.

Touch of Brilliance

Wind Dancer

Flying
{T}: Target creature gains flying until end of turn.

Sol Ring

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Archangel

Unsummon

Return target creature to its owner's hand.

Forest

Plains

Blizzard Elemental

Mana Leak

Counter target spell unless its controller pays {3}.

Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

Island

Circle of Protection: White

{1}: The next time a white source of your choice would deal damage to you this turn, prevent that damage.

Exhaustion

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

Recall

Discard X cards, then return a card from your graveyard to your hand for each card discarded this way. Exile Recall.

Thorn Elemental

You may have Thorn Elemental assign its combat damage as though it weren't blocked.

Circle of Protection: Blue

{1}: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

Squall

Squall deals 2 damage to each creature with flying.

Circle of Protection: Green

{1}: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

Hurricane

Hurricane deals X damage to each creature with flying and each player.

Invisibility

Enchant creature
Enchanted creature can't be blocked except by Walls.

Aven Cloudchaser

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Aven Cloudchaser enters, destroy target enchantment.

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Vec Townships

{T}: Add {C}.
{T}: Add {G} or {W}. Vec Townships doesn't untap during your next untap step.

Sage Owl

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

Time Ebb

Put target creature on top of its owner's library.

Counterspell

Tranquility

Magus of the Unseen

{1}{U}, {T}: Untap target artifact an opponent controls and gain control of it until end of turn. It gains haste until end of turn. When you lose control of the artifact, tap it.

Control Magic

Enchant creature
You control enchanted creature.

Ingenious Thief

Flying
When Ingenious Thief enters, look at target player's hand.

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Extinguish

Kormus Bell

All Swamps are 1/1 black creatures that are still lands.

Coastal Tower

Coastal Tower enters tapped.
{T}: Add {W} or {U}.

Mahamoti Djinn

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

Chastise

Destroy target attacking creature. You gain life equal to its power.

Phantom Warrior

Loyal Sentry

When Loyal Sentry blocks a creature, destroy that creature and Loyal Sentry.

Gaseous Form

Enchant creature
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Birds of Paradise

Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Arena of the Ancients

Legendary creatures don't untap during their controllers' untap steps.
When Arena of the Ancients enters, tap all legendary creatures.