You may discard a Plains card rather than pay this spell's mana cost.
Destroy target artifact or enchantment.

Sacrifice a land: Destroy target enchantment.

If you have 3 or less life, this spell costs less to cast.
Flying
Avatar of Hope can block any number of creatures.

Target player's life total becomes 20.

Celestial Convergence enters with seven omen counters on it.
At the beginning of your upkeep, remove an omen counter from Celestial Convergence. If there are no omen counters on Celestial Convergence, the player with the highest life total wins the game. If two or more players are tied for highest life total, the game is a draw.

Flying, vigilance

Enchant creature
Enchanted creature can block any number of creatures.

Exile target attacking creature unless its controller pays .

Enchant land
Enchanted land has ": Prevent the next 1 damage that would be dealt to any target this turn."

Prevent all damage that would be dealt to Glittering Lion.
: Until end of turn, Glittering Lion loses "Prevent all damage that would be dealt to Glittering Lion." Any player may activate this ability.

Prevent all damage that would be dealt to Glittering Lynx.
: Until end of turn, Glittering Lynx loses "Prevent all damage that would be dealt to Glittering Lynx." Any player may activate this ability.

Flying
Sacrifice two lands: Jeweled Spirit gains protection from artifacts or from the color of your choice until end of turn.

, , Discard two cards: Destroy all creatures except for Mageta the Lion. Those creatures can't be regenerated.

Flash
Enchant creature
Enchanted creature gets +1/+2.

Mercenary Informer can't be the target of black spells or abilities from black sources.
: Put target nontoken Mercenary on the bottom of its owner's library.

, Sacrifice Mine Bearer: Destroy target attacking creature.

All combat damage that would be dealt to you this turn by target unblocked creature is dealt to its controller instead.

Whenever one or more creatures attack you, if Reveille Squad is untapped, you may untap all creatures you control.

: Any player may pay . If no one does, the next time a source of your choice would deal damage to you this turn, prevent that damage.

Creatures you control get +0/+1 until end of turn. They get an additional +0/+2 until end of turn unless any player pays .

: Prevent the next 1 damage that would be dealt to target creature this turn. Any player may activate this ability.

Basic lands each player controls have shroud as long as that player controls three or fewer lands. (They can't be the targets of spells or abilities.)

: The next time target attacking creature would deal combat damage to Shield Dancer this turn, that creature deals that damage to itself instead.

Whenever Soul Charmer deals combat damage to a creature, you gain 2 life unless that creature's controller pays .

: Target attacking creature gets -1/-0 until end of turn.

Sacrifice a land: Trenching Steed gets +0/+3 until end of turn.

Sacrifice a land: Prevent the next 2 damage that would be dealt to any target this turn.

, , Discard two cards: Return X target creatures to their owners' hands.

Flash
Enchant creature
Enchanted creature has shroud. (It can't be the target of spells or abilities.)

If an opponent has no cards in hand, this spell costs less to cast.
Flying

Sacrifice a land: Coastal Hornclaw gains flying until end of turn.

Search target player's library for up to seven cards and exile them. Then that player shuffles.

, Sacrifice a land: Draw a card. Any player may activate this ability.

You may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.

When Gulf Squid enters, tap all lands target player controls.

Hazy Homunculus can't be blocked as long as defending player controls an untapped land.

As Heightened Awareness enters, discard your hand.
At the beginning of your draw step, draw an additional card.

Lands target player controls don't untap during their next untap step.

Whenever a player puts a nontoken creature onto the battlefield, that player returns a land they control to its owner's hand.

Target player reveals their hand. You choose an instant or sorcery card from it and exile that card. You may cast that card for as long as it remains exiled. At the beginning of the next end step, if you haven't cast the card, return it to its owner's hand.

Defender (This creature can't attack.)
: Return Quicksilver Wall to its owner's hand. Any player may activate this ability.

Counter target spell unless its controller pays , where X is its mana value.

: Tap target creature unless its controller pays .

Draw three cards. Then if any player pays , discard three cards.

Whenever an opponent casts a spell, you may draw a card unless that player pays .

Flying
: Ribbon Snake loses flying until end of turn. Any player may activate this ability.

Whenever Shrouded Serpent attacks, defending player may pay . If that player doesn't, Shrouded Serpent can't be blocked this turn.

Flying
Sacrifice Spiketail Drake: Counter target spell unless its controller pays .

Flying (This creature can't be blocked except by creatures with flying or reach.)
Sacrifice Spiketail Hatchling: Counter target spell unless its controller pays .

Flying
Sacrifice a land: Return Stormwatch Eagle to its owner's hand.

Enchant land
Enchanted land has ": Counter target spell unless its controller pays ."

Flying
At the beginning of your end step, tap all lands you control.

Flying
When Windscouter attacks or blocks, return it to its owner's hand at end of combat. (Return it only if it's on the battlefield.)

Return target creature to its owner's hand. Then return another target creature to its owner's hand unless its controller pays .

, Sacrifice a land: Target creature gets +2/+0 until end of turn.

If there are ten or more creature cards total in all graveyards, this spell costs less to cast.
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
: Destroy target creature. It can't be regenerated.

Protection from white
At the beginning of your upkeep, sacrifice Bog Elemental unless you sacrifice a land.

Flying
, Sacrifice a land: Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle.

: Regenerate Chilling Apparition.
Whenever Chilling Apparition deals combat damage to a player, that player discards a card.

Sacrifice two lands: Return Coffin Puppets from your graveyard to the battlefield. Activate only during your upkeep and only if you control a Swamp.

Whenever Death Charmer deals combat damage to a creature, that creature's controller loses 2 life unless they pay .

Destroy target land. Its controller loses 2 life.

: Return target creature card from a graveyard to its owner's hand. Any player may activate this ability but only as a sorcery.

Fen Stalker has fear as long as you control no untapped lands. (It can't be blocked except by artifact creatures and/or black creatures.)

Target player discards a card at random. Then that player discards another card at random unless they pay .

, , Discard two cards: Target player discards X cards at random.

Flash
Enchant creature
Enchanted creature gets -3/-0.

At the beginning of each player's upkeep, that player mills a card. Then they create X 1/1 black Minion creature tokens, where X is the milled card's mana value.

: Nakaya Shade gets +1/+1 until end of turn unless any player pays .

Enchant land
Enchanted land has ": This land deals 1 damage to each creature and each player."

You may discard a Swamp card rather than pay this spell's mana cost.
Choose a creature type. All creatures of that type get -1/-1 until end of turn.

Flying, first strike
At the beginning of your upkeep, sacrifice Pit Raptor unless you pay .

Whenever Plague Fiend deals combat damage to a creature, destroy that creature unless its controller pays .

Destroy all creatures you don't control. They can't be regenerated.

Rebel Informer can't be the target of white spells or abilities from white sources.
: Put target nontoken Rebel on the bottom of its owner's library.

Unless target player pays , that player loses 5 life and you gain 5 life.

Unless any player pays , search your library for a card, put that card into your hand, then shuffle.

Return two target creature cards from your graveyard to your hand unless any player pays .

Target creature gets +1/+1 until end of turn. Another target creature gets -1/-1 until end of turn.

Defender (This creature can't attack.)
: Destroy Wall of Vipers and target creature it's blocking. Any player may activate this ability.

At the beginning of your upkeep, sacrifice Whipstitched Zombie unless you pay .

If an opponent controls seven or more lands, this spell costs less to cast.
Flying
: Avatar of Fury gets +1/+0 until end of turn.

Enchant land
Enchanted land has ": This land deals 1 damage to any target."

Branded Brawlers can't attack if defending player controls an untapped land.
Branded Brawlers can't block if you control an untapped land.

Activated abilities of nontoken Rebels cost an additional "Sacrifice a land" to activate.

At the beginning of each player's end step, Citadel of Pain deals X damage to that player, where X is the number of untapped lands they control.

Destroy target land. Devastate deals 1 damage to each creature and each player.

Sacrifice a land: Fault Riders gets +2/+0 and gains first strike until end of turn. Activate only once each turn.

Whenever Fickle Efreet attacks or blocks, flip a coin at end of combat. If you lose the flip, an opponent gains control of Fickle Efreet.

You may discard a Mountain card rather than pay this spell's mana cost.
Flameshot deals 3 damage divided as you choose among one, two, or three target creatures.

Inflame deals 2 damage to each creature dealt damage this turn.

, Sacrifice two lands: Destroy target land.

Whenever Keldon Berserker attacks, if you control no untapped lands, it gets +3/+0 until end of turn.

When Keldon Firebombers enters, each player sacrifices all lands they control except for three.

, , Discard two cards: Latulla, Keldon Overseer deals X damage to any target.

Flash
Enchant creature
Whenever enchanted creature deals combat damage to defending player, you may destroy target artifact that player controls.

Whenever Lesser Gargadon attacks or blocks, sacrifice a land.

Up to three target creatures can't block this turn.

Rhystic Lightning deals 4 damage to any target unless that permanent's controller or that player pays . If they do, Rhystic Lightning deals 2 damage to the permanent or player.

: Ridgeline Rager gets +1/+0 until end of turn.

Scoria Cat gets +3/+3 as long as you control no untapped lands.

Reorder your graveyard at random. An opponent chooses a card at random in your graveyard. If it's a creature card, put it onto the battlefield. Otherwise, exile it.

Searing Wind deals 10 damage to any target.

Spur Grappler gets +2/+1 as long as you control no untapped lands.

When there are no creatures on the battlefield, sacrifice Task Mage Assembly.
: Task Mage Assembly deals 1 damage to target creature. Any player may activate this ability but only as a sorcery.

Veteran Brawlers can't attack if defending player controls an untapped land.
Veteran Brawlers can't block if you control an untapped land.

: Target creature gains haste until end of turn. (It can attack this turn.)

First strike
: Zerapa Minotaur loses first strike until end of turn. Any player may activate this ability.

If an opponent controls at least four more creatures than you, this spell costs less to cast.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Destroy all enchantments you don't control. Then if you control an untapped land, destroy all enchantments you control.

At the beginning of your upkeep, sacrifice Darba unless you pay .

Whenever a nontoken creature enters, its controller creates a token that's a copy of that creature.
Whenever a nontoken creature leaves the battlefield, exile all tokens with the same name as that creature.
When Dual Nature leaves the battlefield, exile all tokens created with Dual Nature.

Each player creates a green Elephant creature token. Those creatures have "This creature's power and toughness are each equal to the number of creature cards in its controller's graveyard."

At the beginning of your upkeep, you may exile a land card from your graveyard. If you do, put a +1/+1 counter on target creature.

, , Discard two cards: All lands target player controls become 3/3 creatures until end of turn. They're still lands.

Flash
Enchant creature
: Regenerate enchanted creature.

Enchant land
Enchanted land is a 5/6 green Treefolk creature that's still a land.

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

You can't untap more than one land during your untap step.

Trample

Reach (This creature can block creatures with flying.)

Mercenaries don't untap during their controllers' untap steps.

When Silt Crawler enters, tap all lands you control.

You may discard a Forest card rather than pay this spell's mana cost.
Prevent all combat damage that would be dealt by unblocked creatures this turn.

Reach (This creature can block creatures with flying.)
Sacrifice a land: Spitting Spider deals 1 damage to each creature with flying.

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

, Sacrifice a land: Create two 1/1 green Squirrel creature tokens.
, Sacrifice a land: Squirrel creatures get +1/+1 until end of turn.

Whenever Thresher Beast becomes blocked, defending player sacrifices a land.

Put a +1/+1 counter on each of X target creatures.

Enchant land
Enchanted land has ": Target creature gets +1/+1 until end of turn."

Trample
: Vintara Elephant loses trample until end of turn. Any player may activate this ability.

Vintara Snapper has shroud as long as you control no untapped lands. (It can't be the target of spells or abilities.)

Creatures you control get +7/+7 until end of turn.

Target creature gets +1/+1 until end of turn. That creature gets an additional +4/+4 until end of turn unless any player pays .

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

: Tap all lands you control. Chimeric Idol becomes a 3/3 Turtle artifact creature until end of turn.

Flying
, Sacrifice X lands: Put X +1/+1 counters on Copper-Leaf Angel.

Hollow Warrior can't attack or block unless you tap an untapped creature you control not declared as an attacking or blocking creature this combat. (This cost is paid as attackers or blockers are declared.)

Trample
Keldon Battlewagon can't block.
When Keldon Battlewagon attacks, sacrifice it at end of combat.
Tap an untapped creature you control: Keldon Battlewagon gets +X/+0 until end of turn, where X is the power of the creature tapped this way.

At the beginning of your end step, if you control no untapped lands, draw a card.

At the beginning of your end step, if you control no untapped lands, you gain 2 life.

: Choose a color. Add one mana of that color unless any player pays . Activate only as an instant.

Wintermoon Mesa enters tapped.
: Add .
, , Sacrifice Wintermoon Mesa: Tap two target lands.