{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

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

({T}: Add {B} or {R}.) This land enters tapped.

({T}: Add {R}.)

({T}: Add {B} or {R}.) This land enters tapped.

{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card.

{1}, {T}, Sacrifice this artifact: Add one mana of any color. When this artifact is put into a graveyard from the battlefield, draw a card.

Sacrifice another creature: This creature gets +2/+2 until end of turn.

Sacrifice a creature: This creature gets +2/+2 until end of turn.

Sacrifice another creature: Until end of turn, this creature becomes a Dragon with base power and toughness 4/4, flying, and haste.

This creature can't block. Sacrifice a creature: Put a +1/+1 counter on this creature.

Defender Sacrifice another creature: This creature gains deathtouch until end of turn.

{X}: This creature deals X damage to each creature and each player. Spend only black mana on X.

When this creature dies, you may pay {B}. If you do, target player discards a card.

Deathtouch {5}{B}: Each opponent loses 2 life.

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

When this creature enters, you may search your library for a Goblin card, reveal that card, put it into your hand, then shuffle.

Haste When this creature dies, create a 1/1 black Rat creature token with "This token can't block."

When this creature dies, create a 1/1 red Mercenary creature token with "{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

This creature gets +1/+0 for each other Rat you control. A deck can have any number of cards named Rat Colony.

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

When this creature enters, create a 1/1 black Rat creature token with "This token can't block." Whenever another creature you control dies, put a +1/+1 counter on this creature.

Choose one — • Abrade deals 3 damage to target creature. • Destroy target artifact.

Breath Weapon deals 2 damage to each non-Dragon creature.

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

Fiery Cannonade deals 2 damage to each non-Pirate creature.

Kicker—Sacrifice an artifact or creature. (You may sacrifice an artifact or creature in addition to any other costs as you cast this spell.) Target creature gets -2/-2 until end of turn. If this spell was kicked, that creature gets -6/-6 until end of turn instead.

Fire Prophecy deals 3 damage to target creature. You may put a card from your hand on the bottom of your library. If you do, draw a card.

Whenever a creature you control enters this turn, put a +1/+1 counter on it and it gains haste until end of turn. Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

As an additional cost to cast this spell, sacrifice a creature. Fling deals damage equal to the sacrificed creature's power to any target.

Creatures you control get +2/+0 until end of turn. Whenever a nontoken creature you control dies this turn, create a 1/1 black Rat creature token with "This token can't block."

Destroy target nonartifact creature.

Target creature gets -4/-4 until end of turn.

As an additional cost to cast this spell, discard a card or pay {5}. Lightning Axe deals 5 damage to target creature.

Lightning Bolt deals 3 damage to any target.

Up to one target creature gets -1/-1 until end of turn. You create a 1/1 black Rat creature token with "This token can't block."

Exile up to four target cards from a single graveyard. Transmute {1}{B}{B} ({1}{B}{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.)

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost. Destroy target nonblack creature. It can't be regenerated.

Destroy target creature. It can't be regenerated.

You may sacrifice a Mountain rather than pay this spell's mana cost. Thunderclap deals 3 damage to target creature.

Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.

Destroy target non-Vampire, non-Werewolf, non-Zombie creature.