When you control no Swamps, sacrifice Barbarian Outcast.

Tap target creature you don't control.

Overload {3}{U} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Sacrifice Burr Grafter: Target creature gets +2/+2 until end of turn.

Soulshift 3 (When this creature dies, you may return target Spirit card with mana value 3 or less from your graveyard to your hand.)

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)

Whenever enchanted creature attacks or blocks, its controller loses 3 life.

Trample

Each creature you control with a +1/+1 counter on it has trample.

Prevent all combat damage that would be dealt to players this turn.

Destroy target artifact or land.

Destroy target enchantment.

Tap target creature.

Draw a card.

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Create two 1/1 colorless Thopter artifact creature tokens with flying, then you gain 1 life for each creature you control.

Draw two cards, then discard a card at random.

Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Dimir Infiltrator can't be blocked.

Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Flying

Djinn of Wishes enters the battlefield with three wish counters on it.

{2}{U}{U}, Remove a wish counter from Djinn of Wishes: Reveal the top card of your library. You may play that card without paying its mana cost. If you don't, exile it.

Other Elf creatures get +1/+1 and have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

At the beginning of your end step, target enchantment deals damage equal to its mana value to its controller unless that player sacrifices it.

Whenever you gain life, each opponent loses 1 life.

Whenever another creature enters the battlefield, you gain 1 life.

Return up to two target creature cards from your graveyard to the battlefield. Each of those creatures is a black Zombie in addition to its other colors and types. Put Ever After on the bottom of its owner's library.

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

You gain shroud until end of turn. (You can't be the target of spells or abilities.)

Cycling {2} ({2}, Discard this card: Draw a card.)

Create two 1/1 green Elf Warrior creature tokens. Clash with an opponent. If you win, those creatures gain deathtouch until end of turn. (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. Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

At the beginning of your upkeep, you may put a charge counter on Golden Urn.

{T}, Sacrifice Golden Urn: You gain life equal to the number of charge counters on Golden Urn.

Golgari Guildgate enters the battlefield tapped.

{T}: Add {B} or {G}.

Graypelt Refuge enters the battlefield tapped.

When Graypelt Refuge enters the battlefield, you gain 1 life.

{T}: Add {G} or {W}.

When you cycle Grixis Sojourners or it dies, you may exile target card from a graveyard.

Cycling {2}{B} ({2}{B}, Discard this card: Draw a card.)

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

Each player sacrifices a creature.

Creatures with power 1 or less don't untap during their controllers' untap steps.

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {1}."

First strike

At the beginning of your upkeep, if your opponents control no creatures, Kezzerdrix deals 4 damage to you.

Flying

When Looming Hoverguard enters the battlefield, put target artifact on top of its owner's library.

Whenever an opponent discards a card, Megrim deals 2 damage to that player.

Other Merfolk you control get +1/+1.

Create four 1/1 white Bird creature tokens with flying.

Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Target player discards two cards.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Molimo, Maro-Sorcerer's power and toughness are each equal to the number of lands you control.

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Mosswort Bridge enters the battlefield tapped.

{T}: Add {G}.

{G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Mosswort Bridge enters the battlefield tapped.

{T}: Add {G}.

{G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

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

Nightmare's power and toughness are each equal to the number of Swamps you control.

Noosegraf Mob enters the battlefield with five +1/+1 counters on it.

Whenever a player casts a spell, remove a +1/+1 counter from Noosegraf Mob. If you do, create a 2/2 black Zombie creature token.

Equipped creature has "{T}: Add one mana of any color."

Equip {1}

Menace, deathtouch

Instant and sorcery spells you control have deathtouch. (Any amount of damage they deal to a creature is enough to destroy it.)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

{T}: Add {C} for each artifact you control named Powerstone Shard.

If a source an opponent controls would deal damage to you, prevent 1 of that damage.

{U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn. (If any of the abilities use that creature's name, use this creature's name instead.)

You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities.

Rakdos Carnarium enters the battlefield tapped.

When Rakdos Carnarium enters the battlefield, return a land you control to its owner's hand.

{T}: Add {B}{R}.

Flying

Other multicolored creatures you control get +1/+0.

Whenever another multicolored creature you control dies, return it to its owner's hand at the beginning of the next end step.

When Rushing-Tide Zubera dies, if 4 or more damage was dealt to it this turn, draw three cards.

Whenever Scroll Thief deals combat damage to a player, draw a card.

Selesnya Sanctuary enters the battlefield tapped.

When Selesnya Sanctuary enters the battlefield, return a land you control to its owner's hand.

{T}: Add {G}{W}.

Flying

{1}{B}, Exile Sengir Nosferatu: Create a 1/2 black Bat creature token with flying. It has "{1}{B}, Sacrifice this creature: Return an exiled card named Sengir Nosferatu to the battlefield under its owner's control."

{T}: Add {C}.

{R}{W}, {T}: Target creature gets +2/+0 and gains vigilance and haste until end of turn.

Creatures you control get +0/+5 until end of turn.

Flying

{3}, Return a land you control to its owner's hand: Counter target spell unless its controller pays {3}.

Defender

Metalcraft -- As long as you control three or more artifacts, Spire Serpent gets +2/+2 and can attack as though it didn't have defender.

Spire Tracer can't be blocked except by creatures with flying or reach.

Thornwood Falls enters the battlefield tapped.

When Thornwood Falls enters the battlefield, you gain 1 life.

{T}: Add {G} or {U}.

Draw three cards. You may play an additional land this turn.

Whenever you cast an enchantment spell, you may draw a card.

Viridian Betrayers has infect as long as an opponent is poisoned. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Vanishing 2 (This creature enters the battlefield with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

Flying

{W}: Windreaver gains vigilance until end of turn.

{W}: Windreaver gets +0/+1 until end of turn.

{U}: Switch Windreaver's power and toughness until end of turn.

{U}: Return Windreaver to its owner's hand.

Islandwalk, swampwalk (This creature can't be blocked as long as defending player controls an Island or a Swamp.)

Whenever Wrexial, the Risen Deep deals combat damage to a player, you may cast target instant or sorcery card from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.

Discard two cards: Create a 2/2 black Zombie creature token.