Your maximum hand size is eleven. Whenever Cecily, Haunted Mage attacks, you draw a card and you lose 1 life. Then if you have eleven or more cards in your hand, you may cast an instant or sorcery spell from your hand without paying its mana cost. Friends forever (You can have two commanders if both have friends forever.)

Draw three cards, then put a card from your hand on the bottom of your library.

Draw four cards, then put two cards from your hand on top of your library in any order.

Commander creatures you own have "When this creature enters or leaves the battlefield, draw a card."

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

Whenever one or more other creatures you control leave the battlefield without dying, draw a card. {1}{U}, {T}: Return another target creature you control to its owner's hand.

The Ring tempts you. Search your library for a card that shares a color with a legendary creature you control, reveal it, put it into your hand, then shuffle.

When this creature enters, return target instant or sorcery card from your graveyard to your hand.

Defender When this creature enters, you may return target instant or sorcery card from your graveyard to your hand.

Return target instant or sorcery card from your graveyard to your hand. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Exile the top eight cards of your library. You may put a land card from among them onto the battlefield. Until end of turn, for each nonland card type, you may cast a spell of that type from among the exiled cards without paying its mana cost.

This spell costs {1} less to cast if you control a Wizard. Draw three cards.

For each land you control, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Exile up to one target artifact, up to one target creature, up to one target enchantment, up to one target planeswalker, and/or up to one target land. For each permanent exiled this way, its controller reveals cards from the top of their library until they reveal a card that shares a card type with it, puts that card onto the battlefield, then shuffles.

Target opponent sacrifices a creature of their choice, discards three cards, then loses 5 life. You return a creature card from your graveyard to your hand, draw three cards, then gain 5 life.

Discover 10. If the discovered card's mana value is less than 10, create a number of tapped Treasure tokens equal to the difference. (To discover 10, exile cards from the top of your library until you exile a nonland card with mana value 10 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Target player gains 5 life, Inspired Ultimatum deals 5 damage to any target, then you draw five cards.

Target player draws seven cards.

Each player sacrifices a creature of their choice. Create an X/X black Demon creature token with flying, where X is the total power of the creatures sacrificed this way.

Exile all creature cards from target player's graveyard. You may cast spells from among those cards for as long as they remain exiled, and mana of any type can be spent to cast them.

Flash Enchant creature When this Aura enters, draw a card. Enchanted creature gets +1/+0 and has flying.

(Gain the next level as a sorcery to add its ability.) Whenever a creature you control enters, surveil 1. {1}{U}: Level 2 Whenever you attack, target attacking creature with power 3 or less can't be blocked this turn. {3}{U}: Level 3 Whenever a creature you control deals combat damage to a player, you may exile it, then return it to the battlefield under its owner's control.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be blocked this turn."

Flying Modular 3 (This creature enters with three +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.) Whenever another artifact you control enters, target creature an opponent controls gets -1/-1 until end of turn.

Counter target spell.

Exile target artifact or enchantment.

You may sacrifice a nontoken black creature rather than pay this spell's mana cost. Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.

Counter target spell if it shares a color with a creature you control.

Destroy target creature.

Counter target noncreature spell.

Target creature gets -X/-X until end of turn, where X is the number of cards in your hand.

Choose one — • Return target multicolored permanent card with mana value 3 or less from your graveyard to the battlefield tapped. • Counter target instant or sorcery spell. • Destroy target creature or planeswalker with mana value 3 or less.

Choose two target creatures controlled by different players. Return those creatures to their owners' hands.

Destroy target blocked creature.

Return a creature you control to its owner's hand, then destroy all creatures.

Exile any number of creatures you control, then return them to the battlefield under their owner's control. Then repeat this process X more times.

Exile target creature you control, then return that card to the battlefield under your control.

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

Exile target creature you control, then return that card to the battlefield under its owner's control. If it's a Spirit, put a +1/+1 counter on it.

Commander creatures you own have "At the beginning of your end step, exile up to one target tapped creature you control, then return it to the battlefield under its owner's control."

Exile target creature or enchantment, then return it to the battlefield under its owner's control.

Flying When this creature enters, exile another target permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

Exile target creature you control, then return it to the battlefield under its owner's control. Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying When this creature enters, exile up to one other target creature you control. Return it to the battlefield under its owner's control at the beginning of the next end step.

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

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

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle. Cycling {W}{U}{B} ({W}{U}{B}, Discard this card: Draw a card.)

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

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {U} or {B}.

{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.

This land enters tapped. {T}, Sacrifice this land: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

({T}: Add {U}.)

({T}: Add {R}.)

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

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

{T}: Add {U}. Channel — {3}{U}, Discard this card: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Island, Mountain, or Plains card, put it onto the battlefield tapped, then shuffle. Cycling {U}{R}{W} ({U}{R}{W}, Discard this card: Draw a card.)

({T}: Add {W}.)

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

This land enters tapped. {T}, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle. Cycling {U}{B}{R} ({U}{B}{R}, Discard this card: Draw a card.)

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Mountain, Plains, or Swamp card, put it onto the battlefield tapped, then shuffle. Cycling {R}{W}{B} ({R}{W}{B}, Discard this card: Draw a card.)

This land enters tapped unless you control two or more other lands. {T}: Add {W} or {B}.

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

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

({T}: Add {B}.)

Whenever you sacrifice an artifact, put a +1/+1 counter on this creature and add {R}.

Flying Whenever you investigate for the first time each turn, investigate an additional time.

Whenever you cast an artifact spell, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") Activated abilities of artifacts you control cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Whenever a token you control leaves the battlefield, each opponent loses 1 life and you gain 1 life.

Flying Whenever an artifact you control enters, you may draw a card. If you do, discard a card.

At the beginning of your upkeep, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") {T}, Sacrifice three Clues: Search your library for a card, put that card into your hand, then shuffle.

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

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

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

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