Deep Water

{U}: Until end of turn, if you tap a land you control for mana, it produces {U} instead of any other type.

Break Open

Turn target face-down creature an opponent controls face up.

Cephalid Snitch

Sacrifice Cephalid Snitch: Target creature loses protection from black until end of turn.

Pretender's Claim

Enchant creature
Whenever enchanted creature becomes blocked, tap all lands defending player controls.

Mudhole

Target player exiles all land cards from their graveyard.

Sorrow's Path

{T}: Choose two target blocking creatures controlled by the same opponent. If each of those creatures could block all creatures that the other is blocking, remove both of them from combat. Each one then blocks all creatures the other was blocking.
Whenever Sorrow's Path becomes tapped, it deals 2 damage to you and each creature you control.

Obscura Initiate

Flying
{1}{W/B}: Obscura Initiate gains lifelink until end of turn.

Shinka Gatekeeper

Whenever Shinka Gatekeeper is dealt damage, it deals that much damage to you.

Nomad Stadium

{T}: Add {W}. Nomad Stadium deals 1 damage to you.
Threshold — {W}, {T}, Sacrifice Nomad Stadium: You gain 4 life. Activate only if seven or more cards are in your graveyard.

Takeno's Cavalry

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
{T}: Takeno's Cavalry deals 1 damage to target attacking or blocking Spirit.

Razor Pendulum

At the beginning of each player's end step, if that player has 5 or less life, Razor Pendulum deals 2 damage to that player.

Elvish Pathcutter

{2}{G}: Target Elf creature gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.)

Mountain

Goblin Firebug

When Goblin Firebug leaves the battlefield, sacrifice a land.

Cabaretti Initiate

{2}{R/W}: Cabaretti Initiate gains double strike until end of turn.

Cocoon

Enchant creature you control
When Cocoon enters, tap enchanted creature and put three pupa counters on Cocoon.
Enchanted creature doesn't untap during your untap step if Cocoon has a pupa counter on it.
At the beginning of your upkeep, remove a pupa counter from Cocoon. If you can't, sacrifice it, put a +1/+1 counter on enchanted creature, and that creature gains flying.

Great Wall

Creatures with plainswalk can be blocked as though they didn't have plainswalk.

Futurist Operative

As long as Futurist Operative is tapped, it's a Human Citizen with base power and toughness 1/1 and can't be blocked.
{2}{U}: Untap Futurist Operative.

Defensive Stance

Enchant creature
Enchanted creature gets -1/+1.

Have

Pilfering Hawk

Flying
{S}, {T}: Draw a card, then discard a card. ({S} can be paid with one mana from a snow source.)

Island

Fleetfoot Dancer

Warm Welcome

Look at the top five cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. Create a 1/1 green and white Citizen creature token.

Zephyr Spirit

When Zephyr Spirit blocks, return it to its owner's hand.

Wintermoon Mesa

Wintermoon Mesa enters tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice Wintermoon Mesa: Tap two target lands.

Rigo, Streetwise Mentor

Rigo, Streetwise Mentor enters with a shield counter on it. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)
Whenever you attack a player or planeswalker with one or more creatures with power 1 or less, draw a card.

Ignoble Soldier

Whenever Ignoble Soldier becomes blocked, prevent all combat damage that would be dealt by it this turn.

Mimic

{T}, Sacrifice Mimic: Add one mana of any color.
{2}: Mimic becomes a Shapeshifter artifact creature with base power and toughness 3/3 until end of turn.

Dispersing Orb

{3}{U}, Sacrifice a permanent: Return target permanent to its owner's hand.

Brazen Dwarf

Whenever you roll one or more dice, Brazen Dwarf deals 1 damage to each opponent.

Psychic Trance

Until end of turn, Wizards you control gain "{T}: Counter target spell."

Swamp

Bountiful Harvest

You gain 1 life for each land you control.

Forest

Coma Veil

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

Obelisk of Undoing

{6}, {T}: Return target permanent you both own and control to your hand.

Infernal Pet

Whenever you cast your second spell each turn, put a +1/+1 counter on Infernal Pet and it gains flying until end of turn.

Ascendant Spirit

{S}{S}: Ascendant Spirit becomes a Spirit Warrior with base power and toughness 2/3.
{S}{S}{S}: If Ascendant Spirit is a Warrior, put a flying counter on it and it becomes a Spirit Warrior Angel with base power and toughness 4/4.
{S}{S}{S}{S}: If Ascendant Spirit is an Angel, put two +1/+1 counters on it and it gains "Whenever this creature deals combat damage to a player, draw a card."

Crazed Goblin

Crazed Goblin attacks each combat if able.

Mindless Null

Mindless Null can't block unless you control a Vampire.

Face of Fear

{2}{B}, Discard a card: Face of Fear gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Plains

Juju Bubble

Cumulative upkeep {1} (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.)
When you play a card, sacrifice Juju Bubble.
{2}: You gain 1 life.

Whelming Wave

Return all creatures to their owners' hands except for Krakens, Leviathans, Octopuses, and Serpents.

Cave of the Frost Dragon

If you control two or more other lands, Cave of the Frost Dragon enters tapped.
{T}: Add {W}.
{4}{W}: Cave of the Frost Dragon becomes a 3/4 white Dragon creature with flying until end of turn. It's still a land.

Arcum's Sleigh

{2}, {T}: Target creature gains vigilance until end of turn. Activate only during combat and only if defending player controls a snow land.

Witness Protection

Enchant creature
Enchanted creature loses all abilities and is a green and white Citizen creature with base power and toughness 1/1 named Legitimate Businessperson. (It loses all other colors, card types, creature types, and names.)

Rakalite

{2}: Prevent the next 1 damage that would be dealt to any target this turn. Return Rakalite to its owner's hand at the beginning of the next end step.

Riveteers Initiate

{1}{B/G}: Riveteers Initiate gains deathtouch until end of turn.

Pale Moon

Until end of turn, if a player taps a nonbasic land for mana, it produces colorless mana instead of any other type.

Frost Augur

{S}, {T}: Look at the top card of your library. If it's a snow card, you may reveal it and put it into your hand. ({S} can be paid with one mana from a snow source.)

Boreal Outrider

Whenever you cast a creature spell, if {S} of any of that spell's colors was spent to cast it, that creature enters with an additional +1/+1 counter on it. ({S} is mana from a snow source.)

Vivid Flying Fish

Vivid Flying Fish has flying as long as it's attacking. (It can't be blocked except by creatures with flying or reach.)

Brokers Initiate

{4}{G/U}: Brokers Initiate has base power and toughness 5/5 until end of turn.

Cyclopean Snare

{3}, {T}: Tap target creature, then return Cyclopean Snare to its owner's hand.

Beskir Shieldmate

When Beskir Shieldmate dies, create a 1/1 white Human Warrior creature token.

Alabaster Leech

White spells you cast cost {W} more to cast.

Gathering Throng

When Gathering Throng enters, you may search your library for any number of cards named Gathering Throng, reveal them, put them into your hand, then shuffle.

Wood Elemental

As Wood Elemental enters, sacrifice any number of untapped Forests.
Wood Elemental's power and toughness are each equal to the number of Forests sacrificed as it entered.

Shelkin Brownie

{T}: Target creature loses all "bands with other" abilities until end of turn.

Jandor's Ring

{2}, {T}, Discard the last card you drew this turn: Draw a card.

Expendable Lackey

{1}{U}, Exile Expendable Lackey from your graveyard: Create a 1/1 blue Fish creature token with "This creature can't be blocked." Activate only as a sorcery.

Gnottvold Slumbermound

Gnottvold Slumbermound enters tapped.
{T}: Add {R}.
{3}{R}{G}{G}, {T}, Sacrifice Gnottvold Slumbermound: Destroy target land. Create a 4/4 green Troll Warrior creature token with trample.

Botanical Plaza

Botanical Plaza enters tapped.
{T}: Add {G} or {W}.
{2}{G}{W}, {T}, Sacrifice Botanical Plaza: Draw a card.

Security Detail

{W}{W}: Create a 1/1 white Soldier creature token. Activate only if you control no creatures and only once each turn.

Cleanup Crew

When Cleanup Crew enters, choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Exile target card from a graveyard.
• You gain 4 life.

Assembly Hall

{4}, {T}: Reveal a creature card in your hand. Search your library for a card with the same name as that card, reveal it, put it into your hand, then shuffle.

Aven Trooper

Flying
{2}{W}, Discard a card: Aven Trooper gets +1/+2 until end of turn.

Icatian Crier

{1}{W}, {T}, Discard a card: Create two 1/1 white Citizen creature tokens.

Seven Dwarves

Seven Dwarves gets +1/+1 for each other creature named Seven Dwarves you control.
A deck can have up to seven cards named Seven Dwarves.

Armageddon Clock

At the beginning of your upkeep, put a doom counter on Armageddon Clock.
At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.
{4}: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.

Kyodai, Soul of Kamigawa

Flash
Flying
When Kyodai, Soul of Kamigawa enters, another target permanent gains indestructible for as long as you control Kyodai.
{W}{U}{B}{R}{G}: Kyodai gets +5/+5 until end of turn.

Goblin War Wagon

Goblin War Wagon doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {2}. If you do, untap Goblin War Wagon.

Scorching Spear

Scorching Spear deals 1 damage to any target.

Cycle of Life

Return Cycle of Life to its owner's hand: Target creature you cast this turn has base power and toughness 0/1 until your next upkeep. At the beginning of your next upkeep, put a +1/+1 counter on that creature.