Negative — As long as K-9 is untapped, other legendary creatures you control have ward {1}. Affirmative — {1}{U}, {T}: Target legendary creature can't be blocked this turn. Doctor's companion (You can have two commanders if the other is the Doctor.)

{3}, {T}: Draw a card.

This spell costs {1} less to cast if you control two or more legendary creatures. Scry 2, then draw two cards.

Body of Knowledge's power and toughness are each equal to the number of cards in your hand. You have no maximum hand size. Whenever this creature is dealt damage, draw that many cards.

Look at the top five cards of your library. Exile one of them face down and put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost if it's an instant spell with mana value 2 or less. If you don't, put that card into your hand.

Ward {2} You may look at the top card of your library any time. The top card of your library has plot. The plot cost is equal to its mana cost. You may plot nonland cards from the top of your library.

Draw two cards. Exile Inspiring Refrain with three time counters on it. Suspend 3—{2}{U} (Rather than cast this card from your hand, you may pay {2}{U} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Whenever a creature you control deals combat damage to a player, you may draw a card. Cycling {2} ({2}, Discard this card: Draw a card.)

{1}, {T}: Draw two cards, then discard a card. Create a 1/1 colorless Pilot creature token with "This token crews Vehicles as though its power were 2 greater." Crew 8 (Tap any number of creatures you control with total power 8 or more: This Vehicle becomes an artifact creature until end of turn.) Shorikai, Genesis Engine can be your commander.

Whenever a player draws their second card during their turn, you draw a card. Whenever a player casts their second spell during their turn, you create a 2/2 white Knight creature token.

Draw three cards. Then discard two cards unless you discard a basic land card.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Draw two cards.

Draw cards equal to the greatest mana value among historic permanents you control. (Artifacts, legendaries, and Sagas are historic.)

You have no maximum hand size. At the beginning of your upkeep, if you have exactly thirteen cards in your hand, you win the game. {3}{U}: Draw a card.

At the beginning of your upkeep, put a time counter on this enchantment. Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less, where X is the number of time counters on this enchantment.

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

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

You may cast spells from your hand without paying their mana costs.

This artifact enters tapped with a time counter on it. {T}: Add an amount of {C} equal to the number of time counters on this artifact. {4}, {T}: Time travel. Activate only as a sorcery. (For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter.)

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

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

{T}: Add {C}. {T}: Add {W} or {U}. This artifact deals 1 damage to you.

Whenever The Seventh Doctor attacks, choose a card in your hand. Defending player guesses whether that card's mana value is greater than the number of artifacts you control. If they guessed wrong, you may cast it without paying its mana cost. If you don't cast a spell this way, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

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

Exile each creature you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

When Gallifrey Stands enters, return all Doctor cards from your graveyard to your hand. At the beginning of your upkeep, you may put a Doctor creature card from your hand onto the battlefield. Then if you control thirteen or more Doctors, you win the game.

This land enters tapped. {T}: Add {W} or {U}. {3}{W}{U}: Until end of turn, this land becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.

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

This land enters tapped unless you control a Plains or an Island. {T}: Add {W} or {U}.

({T}: Add {U}.)

({T}: Add {W}.)

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

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 {W} or {U}.

{T}: Add {C}{C}. Activate only if you control five or more lands.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Counter target spell.

Vanishing 3 (This enchantment enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.) When this enchantment enters and at the beginning of your first main phase, exile target creature an opponent controls until this enchantment leaves the battlefield.

Choose one or more — • Exile all artifacts. • Exile all creatures. • Exile all enchantments. • Exile all graveyards.

Creatures your opponents control have base power and toughness 0/1 until end of turn.

Exile target nonland permanent. Each player other than its controller creates a token that's a copy of it.

Choose up to four target creatures you don't control. For each of them, that creature's controller faces a villainous choice — That creature becomes a 1/1 white Human creature and loses all abilities, or you create a token that's a copy of it.

Put target nonland historic permanent into its owner's library fourth from the top. (Artifacts, legendaries, and Sagas are historic.)

Counter target spell unless its controller pays {1}.

When this enchantment enters, untap all creatures, then those creatures phase out until this enchantment leaves the battlefield. Put a time counter on this enchantment for each creature that phased out this way. Vanishing (At the beginning of your upkeep, remove a time counter from this enchantment. When the last is removed, sacrifice it.)

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Equipped creature has deathtouch. Whenever equipped creature deals combat damage to a player, that player loses half their life, rounded up. Equip {3}

Exile target opponent's graveyard. For each creature card exiled this way, create a 1/1 colorless Spirit creature token.

Exile target artifact or enchantment. If you cast this spell during your main phase, you may exile up to one other target artifact or enchantment.

Choose one — • Counter all other spells. • Switch each creature's power and toughness until end of turn. • Creatures can't be blocked this turn.

Tap target creature or Vehicle, then put three stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.) Cycling {2} ({2}, Discard this card: Draw a card.)

Exile target creature. Its controller gains life equal to its power.

At the beginning of combat on your turn, create a token that's a copy of equipped creature, except the token isn't legendary. That token gains haste. Equip {5}

Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy. Equip {3}

Each spell costs {3} more to cast except during its controller's turn.

Indestructible Other legendary permanents you control have indestructible.

Cast this spell only during the declare blockers step on an opponent's turn. Remove all attacking creatures from combat and untap them. After this phase, there is an additional combat phase. Each of those creatures attacks that combat if able. They can't attack you or planeswalkers you control that combat.

Commander creatures you own have "When this creature enters and at the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. For each opponent who does, you gain protection from that player until your next turn." (You can't be targeted, dealt damage, or enchanted by anything controlled by that player.)

Vigilance, ward {1} {T}: Another target creature you control gains protection from the card type of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that type.)