Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

When Acidic Slime enters the battlefield, destroy target artifact, enchantment, or land.

{T}: Add one mana of any color in your commander's color identity.

Flying

Whenever you cycle or discard another card, put a -1/-1 counter on each creature your opponents control.

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

{T}, Sacrifice a land: Destroy target land.

You may play two additional lands on each of your turns.

({T}: Add {B} or {R}.)

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

Whenever Carth the Lion enters the battlefield or a planeswalker you control dies, look at the top seven cards of your library. You may reveal a planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Planeswalkers' loyalty abilities you activate cost an additional [+1] to activate.

Devoid (This card has no color.)

When Catacomb Sifter enters the battlefield, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."

Whenever another creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Destroy target non-Swamp land. If that land was nonbasic, Choking Sands deals 2 damage to the land's controller.

Target creature gets +2/+2 until end of turn. Another target creature gets -2/-2 until end of turn.

{T}: Add {G}.

You may play lands from your graveyard.

Destroy target noncreature artifact.

Indestructible

{T}: Add one mana of any color.

Destroy target artifact, target creature, target enchantment, and target land. (You can't cast this spell unless you have legal choices for all its targets.)

Exile all artifacts, creatures, and lands from the battlefield, all cards from all graveyards, and all cards from all hands.

Cycling {5}{R}{R} ({5}{R}{R}, Discard this card: Draw a card.)

When you cycle Decree of Annihilation, destroy all lands.

Search your library for a card, put that card into your hand, then shuffle.

At the beginning of each player's upkeep, that player sacrifices a nonbasic land.

Cleave {1}{B}{B}{G} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)

Search your library for a [basic land] card, [reveal it,] put it into your hand, then shuffle.

Destroy target creature or planeswalker.

(Gain the next level as a sorcery to add its ability.)

Landfall -- Whenever a land enters the battlefield under your control, you gain 1 life.

{2}{G}: Level 2

You may play an additional land on each of your turns.

{4}{G}: Level 3

When this Class becomes level 3, target land you control becomes a creature with haste and "This creature's power and toughness are each equal to the number of lands you control." It's still a land.

Destroy target land.

Flashback {5}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target player sacrifices a land.

Threshold -- Each player sacrifices all lands they control instead if seven or more cards are in your graveyard.

Landfall -- Whenever a land enters the battlefield under your control, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Draw two cards, then discard two cards.

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

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

Threshold -- If seven or more cards are in your graveyard, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.

Firebolt deals 2 damage to any target.

Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Devoid (This card has no color.)

{1}: Target colorless creature gains haste until end of turn.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Enchant creature

Whenever enchanted creature becomes the target of a spell or ability, that spell or ability's controller gains control of that creature. (This effect lasts indefinitely.)

Search your library for a card, put that card into your hand, discard a card at random, then shuffle.

Each opponent's maximum hand size is reduced by one.

Creatures you control have haste.

{2}{R}, {T}, Sacrifice a land: Create a 3/3 colorless Golem enchantment artifact creature token.

Put a +1/+1 counter on target creature.

Morbid -- Put three +1/+1 counters on that creature instead if a creature died this turn.

Destroy target land. If that land was a snow land, Icequake deals 1 damage to that land's controller.

Each creature you control with a +1/+1 counter on it has "{T}: Add one mana of any color."

-1: Put a +1/+1 counter on target creature.

Landfall -- Whenever a land enters the battlefield under your control, you may put a quest counter on Khalni Heart Expedition.

Remove three quest counters from Khalni Heart Expedition and sacrifice it: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

{T}: Add {B}.

Lightning Bolt deals 3 damage to any target.

{T}: Add {G}.

+2: Discard a card, then draw a card. If a land card is discarded this way, draw an additional card.

-3: Return up to two target land cards from your graveyard to the battlefield.

-11: Destroy up to six target nonland permanents, then create six 2/2 green Cat Warrior creature tokens with forestwalk.

Lord Windgrace can be your commander.

As long as Mirran Safehouse is on the battlefield, it has all activated abilities of all land cards in all graveyards.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Destroy target tapped creature.

Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Destroy target artifact or enchantment.

{G}: Add one mana of any color.

Enchant creature

When Paralyze enters the battlefield, tap enchanted creature.

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

At the beginning of the upkeep of enchanted creature's controller, that player may pay {4}. If the player does, untap the creature.

When Phylath, World Sculptor enters the battlefield, create a 0/1 green Plant creature token for each basic land you control.

Landfall -- Whenever a land enters the battlefield under your control, put four +1/+1 counters on target Plant you control.

{G}, {T}, Sacrifice a creature: Destroy target enchantment.

Destroy target land.

Return target creature card from your graveyard to your hand.

Trample

Landfall -- Whenever a land enters the battlefield under your control, you may create a 4/4 green Beast creature token.

You may play lands from your graveyard.

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

Destroy target land.

{T}: Add {C}{C}.

Spells cost {1} more to cast.

{T}, Tap an untapped creature you control: Add one mana of any color.

Destroy target land.

{T}: Add {C}.

{T}, Sacrifice Strip Mine: Destroy target land.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Flying

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Equipped creature gets +2/+2 and has protection from green and from white.

Whenever equipped creature deals combat damage to a player, exile up to one target creature you own, then search your library for a basic land card. Put both cards onto the battlefield under your control, then shuffle.

Equip {2}

({T}: Add {R} or {G}.)

Each player sacrifices X lands.

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Landfall -- Whenever a land enters the battlefield under your control, create a Food token or a Treasure token. (Food is an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life." Treasure is an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

When Titania, Protector of Argoth enters the battlefield, return target land card from your graveyard to the battlefield.

Whenever a land you control is put into a graveyard from the battlefield, create a 5/3 green Elemental creature token.

As an additional cost to cast this spell, discard a card.

Draw two cards.

+1: Reveal the top four cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.

0: Put any number of land cards from your hand onto the battlefield tapped.

-3: Create a green Treefolk creature token with reach and "This creature's power and toughness are each equal to the number of lands you control."

-8: Return all permanent cards from your graveyard to your hand. You get an emblem with "You have no maximum hand size."