The first spell you cast from anywhere other than your hand each turn has demonstrate. (When you cast that spell, you may copy it. If you do, choose an opponent to also copy it. A copy of a permanent spell becomes a token.)

Whenever you copy a spell, put a +1/+1 counter on The Twelfth Doctor.

Draw two cards, then you may exile a nonland card from your hand with a number of time counters on it equal to its mana value. Then target opponent does the same. Cards exiled this way that don't have suspend gain suspend.

Time travel. (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.)

Draw a card for each tapped creature target opponent controls.

Whenever Théoden, King of Rohan or another Human you control enters, target creature gains double strike until end of turn.

When They Came from the Pipes enters, manifest dread twice. (To manifest dread, look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)

Whenever a face-down creature you control enters, draw a card.

Devoid (This card has no color.)

When you cast this spell, exile up to one target noncreature, nonland permanent an opponent controls with mana value 4 or less. If you do, Thief of Existence gains "When this creature leaves the battlefield, target opponent draws a card."

Flying

Whenever Thief of Sanity deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.

Flash

Whenever Thieves' Guild Enforcer or another Rogue you control enters, each opponent mills two cards.

As long as an opponent has eight or more cards in their graveyard, Thieves' Guild Enforcer gets +2/+1 and has deathtouch.

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

Draw three cards. Then discard two cards unless you discard an enchantment card.

Noncreature spells cost more to cast.

Equipped creature has ", : This creature deals 1 damage to any target" and "Whenever a creature dies, untap this creature."

Whenever a Shaman creature enters, you may attach Thornbite Staff to it.

Equip

: Add .

, Forage: Add two mana in any combination of colors. (To forage, exile three cards from your graveyard or sacrifice a Food.)

, : Search your library for a Squirrel card, reveal it, put it into your hand, then shuffle.

This land enters tapped.

When this land enters, you gain 1 life.

: Add or .

Draw four cards, then discard two cards.

Tap all creatures your opponents control and untap all creatures you control.

Untap Thousand Moons Infantry during each other player's untap step.

Delirium — Thraben Foulbloods gets +1/+1 and has menace as long as there are four or more card types among cards in your graveyard. (A creature with menace can't be blocked except by two or more creatures.)

, , Exile Thran Foundry: Target player shuffles their graveyard into their library.

Trample

Whenever Thrashing Frontliner attacks a battle, it gets +1/+1 until end of turn.

, : Choose one that hasn't been chosen —

• Three Bowls of Porridge deals 2 damage to target creature.

• Tap target creature.

• Sacrifice Three Bowls of Porridge. You gain 3 life.

Threefold Thunderhulk enters with three +1/+1 counters on it.

Whenever Threefold Thunderhulk enters or attacks, create a number of 1/1 colorless Gnome artifact creature tokens equal to its power.

, Sacrifice another artifact: Put a +1/+1 counter on Threefold Thunderhulk.

Target creature gets +1/+2 until end of turn.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

You may cast CARDNAME during an opponent's combat phase.

Firstest strike (This creature deals combat damage to creatures before creatures with first strike.)

After each opponent's first combat phase of each turn, there is an additional combat phase. Only CARDNAME can attack during that combat phase.

Whenever a player casts a black spell, you may pay . If you do, you gain 1 life.

As Throne of Eldraine enters, choose a color.

: Add four mana of the chosen color. Spend this mana only to cast monocolored spells of that color.

, : Draw two cards. Spend only mana of the chosen color to activate this ability.

, Sacrifice an artifact: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

At the beginning of your end step, each opponent loses life equal to the number of tapped creatures you control.

: Add .

, , Sacrifice Throne of the High City: You become the monarch.

Equipped creature gets +2/+0.

Whenever equipped creature attacks, you may sacrifice Throwing Knife. If you do, Throwing Knife deals 2 damage to any target.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Whenever you crank Thud-for-Duds, roll two six-sided dice. Thud-for-Duds deals damage to target creature equal to the difference between those results.

Trample

Lieutenant — As long as you control your commander, Thunderfoot Baloth gets +2/+2 and other creatures you control get +2/+2 and have trample.

First strike

Black spells and green spells you cast cost less to cast.

First strike

Crushing Teeth — Whenever Thunderwolf Cavalry deals combat damage to a player, put a +1/+1 counter on each other creature you control.

+1: Draw a card, then discard a card at random.

−4: Tibalt, the Fiend-Blooded deals damage equal to the number of cards in target player's hand to that player.

−6: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.

: For each attacking creature without flying, its controller may pay . If that player doesn't, creatures you control blocking that creature gain first strike until end of turn.

Cast this spell only if no permanents named Tidal Influence are on the battlefield.

Tidal Influence enters with a tide counter on it.

At the beginning of your upkeep, put a tide counter on Tidal Influence.

As long as there is exactly one tide counter on Tidal Influence, all blue creatures get -2/-0.

As long as there are exactly three tide counters on Tidal Influence, all blue creatures get +2/+0.

Whenever there are four or more tide counters on Tidal Influence, remove all tide counters from it.

Whenever one or more creatures block, flip a coin. If you win the flip, each blocking creature is sacrificed by its controller. If you lose the flip, each blocked creature is sacrificed by its controller.

Double team (When this creature attacks, conjure a duplicate into your hand, then both of them perpetually lose double team.)

Other Demons, Devils, Imps, and Tieflings you control get +1/+0.

When Tilling Treefolk enters, you may return up to two target land cards from your graveyard to your hand.

Timberpack Wolf gets +1/+1 for each other creature you control named Timberpack Wolf.

Each creature you control with a level counter on it gets +2/+2.

Search your library for a legendary creature card, reveal it, put it into your hand, then shuffle.

Exile target creature that blocked or was blocked by a Zombie this turn.

Kicker (You may pay an additional as you cast this spell.)

Target creature gets -1/-0 until end of turn. If this spell was kicked, that creature blocks this turn if able.

Draw a card.

At the beginning of each upkeep, each player exiles the top card of their library. The player who exiled the card with the highest mana value takes an extra turn after this one. If two or more players' cards are tied for highest, the tied players repeat this process until the tie is broken.

Remove Timmerian Fiends from your deck before playing if you're not playing for ante.

, Sacrifice Timmerian Fiends: The owner of target artifact may ante the top card of their library. If that player doesn't, exchange ownership of that artifact and Timmerian Fiends. Put the artifact card into your graveyard and Timmerian Fiends from anywhere into that player's graveyard. This change in ownership is permanent.

Tinder Farm enters tapped.

: Add .

, Sacrifice Tinder Farm: Add .

Tishana, Voice of Thunder's power and toughness are each equal to the number of cards in your hand.

You have no maximum hand size.

When Tishana enters, draw a card for each creature you control.

, : Put a charge counter on Titan Forge.

, Remove three charge counters from Titan Forge: Create a 9/9 colorless Golem artifact creature token.