Commander creatures you own have "The first Dragon spell you cast each turn costs {2} less to cast."

Changeling (This card is every creature type.) Create an X/X colorless Shapeshifter creature token with changeling and deathtouch, where X is the number of land cards in your graveyard. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Changeling (This card is every creature type.) When this creature enters, put a +1/+1 counter on target creature.

Changeling (This card is every creature type.) {2}{G}, {T}, Exile a creature card from your graveyard: Put two +1/+1 counters on target creature. Activate only as a sorcery.

Changeling (This card is every creature type.) When this creature enters, if you control three or more creatures that share a creature type, put a +1/+1 counter on this creature, then scry 1.

{T}: Add {C}. {3}{G}, {T}, Sacrifice this land: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

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

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

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {G}.)

({T}: Add {U}.)

This land enters tapped. {T}: Add {U}. Cycling {U} ({U}, Discard this card: Draw a card.)

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {G} or {U}.) This land enters tapped.

({T}: Add {G} or {U}.) This land enters tapped.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {G} or {U}.

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

This land enters tapped. {T}: Add {G}. Cycling {G} ({G}, Discard this card: Draw a card.)

As this land enters, you may reveal a Forest or Island card from your hand. If you don't, this land enters tapped. {T}: Add {G} or {U}.

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

{T}: Add {G}.

All Slivers have "{T}: Add one mana of any color."

Search your library for up to X basic land cards, where X is the number of creatures attacking you, put those cards onto the battlefield tapped, then shuffle. Prevent all combat damage that would be dealt this turn.

{T}: Untap another target permanent.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

{T}: Add {G}.

Sliver creatures you control have "{T}: Add one mana of any color."

This artifact enters tapped. {T}: Add {G}.

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

Whenever this creature or another Elemental you control enters, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand.

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

{1}, {T}: Add {G}{U}.

This artifact enters tapped. {T}: Add {U}.

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

You have no maximum hand size. {T}: Add {C}.

Changeling (This card is every creature type.) {1}{U}: Switch this creature's power and toughness until end of turn.

Changeling (This card is every creature type.) Reach {2}: Put target card from your graveyard on the bottom of your library.

This spell costs {X} less to cast, where X is the total mana value of Dragons you control. Flying, trample {2}{G}, Sacrifice a land: Return this card from your graveyard to your hand.

Creatures don't untap during their controllers' untap steps. Whenever a creature enters, untap all creatures.

Bigby's Hand — {T}: Untap two other target permanents. Activate only as a sorcery and only once each turn.

Whenever you cast a Druid spell, you may draw a card. Tap seven untapped Druids you control: Gain control of all lands target player controls.

Changeling (This card is every creature type.) Whenever another creature you control named Gladewalker Ritualist enters, draw a card.

You may look at the top card of your library any time. You may cast Dragon spells from the top of your library.

Return target creature to its owner's hand. You may have Shapeshifters you control become copies of that creature until end of turn.

Whenever another Bear you control enters, choose one — • Put two +1/+1 counters on target Bear. • Target Bear you control fights target creature you don't control.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Counter target spell.

Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.

Flying When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature. Spells your opponents cast that target this creature cost {2} more to cast.

Flying, ward {3} When Kairi dies, choose one — • Return any number of target nonland permanents with total mana value 6 or less to their owners' hands. • Mill six cards, then return up to two instant and/or sorcery cards from your graveyard to your hand.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Destroy target artifact or enchantment.

Target player returns each commander they control from the battlefield to the command zone. Draw a card.

Changeling (This card is every creature type.) When this creature enters, you may exile a creature card from your graveyard. If you do, exile target artifact or enchantment an opponent controls.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Counter target noncreature spell.

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

Counter target noncreature spell unless its controller pays {1}. Ferocious — If you control a creature with power 4 or greater, counter that spell instead.