Return target creature card from your graveyard to the battlefield. That creature explores, then it explores again. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard. Then repeat this process.)

Whenever you draw a card, put a +1/+1 counter on this creature. When this creature dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on this creature. (They can't be blocked as long as defending player controls an Island.)

Flying Whenever a creature you control deals combat damage to a player, put that many +1/+1 counters on it.

Flying Tribute 3 (As this creature enters, an opponent of your choice may put three +1/+1 counters on it.) When this creature enters, if tribute wasn't paid, gain control of target creature.

Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith. At the beginning of combat on your turn, if The Ozolith has counters on it, you may move all counters from The Ozolith onto target creature.

Whenever one or more artifact and/or creature cards leave your graveyard during your turn, put a +1/+1 counter on target creature you control.

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

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

This land enters tapped. {T}: Add {U}, {B}, or {R}.

This land enters tapped. When this land enters, add one mana of any color. {T}: Add {C}. ({C} represents colorless mana.)

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

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

As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped. {T}: Add {B} or {R}.

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

{T}: Add {C}. {1}, {T}, Sacrifice this land: Search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

{T}: Add {C}. {T}, Sacrifice a creature: You gain 1 life.

({T}: Add {U}.)

{T}: Add {C}. {T}: Add one mana of any color. Activate only if this land entered this turn. {3}, {T}: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This token can't block." (Players dealt combat damage by it also get a poison counter.)

({T}: Add {R}.)

{T}: Add {C}. {1}, {T}: Move a counter from target permanent you control onto another target permanent. Activate only as a sorcery.

{T}: Add {C}. {1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

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.)

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

{T}: Add {C}. {T}: Add {U} or {R}. This land deals 1 damage to you.

({T}: Add {B} or {R}.) This land enters tapped unless you control two or more basic lands.

This land enters tapped unless you control two or fewer other lands. {T}: Add {U} or {R}.

({T}: Add {U} or {B}.) This land enters tapped unless you control two or more basic lands.

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

({T}: Add {B}.)

When this creature enters, each player sacrifices a nontoken creature of their choice.

When this creature enters, gain control of target permanent. At the beginning of your end step, if you control three or more permanents you don't own, draw three cards.

As an additional cost to cast this spell, pay {4} or sacrifice an artifact or creature. Destroy target creature or planeswalker.

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.) Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.

Flying Whenever this creature or another creature you control dies, each opponent sacrifices a creature of their choice.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Counter target spell.

Choose one — • Counter target artifact or enchantment spell. If a spell is countered this way, exile it instead of putting it into its owner's graveyard. • Counter target activated or triggered ability.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Choose three. You may choose the same mode more than once. • Fiery Confluence deals 1 damage to each creature. • Fiery Confluence deals 2 damage to each opponent. • Destroy target artifact.

As an additional cost to cast this spell, sacrifice a creature or enchantment. Exile target creature.

Undying (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.) Whenever this creature or another creature enters from your graveyard, that creature deals damage equal to its power to any target.

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

Whenever a creature you control dies, each other player sacrifices a creature of their choice.

Destroy target creature or planeswalker.

Flying Whenever another Spirit you control enters, this creature gets +1/+1 until end of turn. Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {X}, where X is this creature's power.

When this creature enters, destroy target nonland permanent an opponent controls.

Choose one — • Put a +1/+1 counter on target creature. • Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

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

As an additional cost to cast this spell, sacrifice any number of creatures. Create an X/X blue and black Zombie creature token with menace, where X is the total power of the sacrificed creatures. Flashback {3}{U}{B} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)

Equipped creature gets +4/+2. Equip—Sacrifice a creature.

{T}, Sacrifice a creature: Put two +1/+1 counters on target creature. {T}, Remove a counter from a creature you control: Create a Treasure token. {T}, Sacrifice an artifact: Create a 2/1 white and black Inkling creature token with flying. {3}{B}: Untap Fain.

Sacrifice a creature: This enchantment deals 1 damage to any target.

Flying, deathtouch When this creature enters, draw a card.

Flying {B}, Pay 2 life: Put a +1/+1 counter on this creature. When this creature leaves the battlefield, draw a card for each +1/+1 counter on it.

Casualty 3 (As you cast this spell, you may sacrifice a creature with power 3 or greater. When you do, copy this spell.) You draw X cards and you lose X life.

You draw two cards and you lose 2 life.

When this creature dies, if it had a +1/+1 counter on it, draw a card.

Whenever this creature or another permanent enters from a graveyard, draw a card. Whenever a player casts a spell from a graveyard, draw a card. 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.)

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.) {1}, Sacrifice this creature: Draw a card.

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

Sacrifice a creature: Add {C}{C}.

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

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

{T}: Add one mana of any color in your commander's color identity. Sacrifice this artifact: Draw a card.

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

{T}: Add {U}, {B}, or {R}.

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

Kicker {3} Indestructible When this artifact enters, if it was kicked, create two tapped tokens that are copies of this artifact. {T}: Add one mana of any color.

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

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)