Menace, trample, lifelink, hexproof

Whenever The Grim Captain attacks, each opponent sacrifices a nonland permanent. Then you may put an exiled creature card used to craft The Grim Captain onto the battlefield under your control tapped and attacking.

When The Hourglass Coven enters the battlefield, draft a card from The Hourglass Coven's spellbook twice, then put those cards onto the battlefield.

Other Warlocks you control get +1/+1.

Body Thief — When you cast this spell, you may exile a creature you control and put a takeover counter on it.

You may have The Master, Formed Anew enter the battlefield as a copy of a creature card in exile with a takeover counter on it.

: Target creature an opponent controls with power less than or equal to The Master's power gains skulk until end of turn. Goad it. (A creature with skulk can't be blocked by creatures with greater power.)

Whenever a creature with skulk deals combat damage to one of your opponents, put a +1/+1 counter on The Master and draw a card.

When The Master, Transcendent enters the battlefield, target player gets two rad counters.

: Put target creature card in a graveyard that was milled this turn onto the battlefield under your control. It's a green Mutant with base power and toughness 3/3. (It loses its other colors and creature types.)

Deathtouch

Whenever The Most Dangerous Gamer enters the battlefield or attacks, open an Attraction.

Whenever you open an Attraction, put a +1/+1 counter on The Most Dangerous Gamer.

Whenever you claim the prize of an Attraction, destroy target permanent.

When The Mouth of Sauron enters the battlefield, target player mills three cards. Then amass Orcs X, where X is the number of instant and sorcery cards in that player's graveyard. (Put X +1/+1 counters on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)

Landfall — Whenever a land enters the battlefield under your control, create a 0/1 green Plant creature token. If you control seven or more lands with different names, create a 2/2 black Zombie creature token instead.

Land cards in your graveyard have dredge 2. (You may return a land card from your graveyard to your hand and mill two cards instead of drawing a card.)

Haste

, : Copy target activated or triggered ability you control from another legendary source that's not a commander. You may choose new targets for the copy. (Mana abilities can't be targeted.)

If The Prismatic Piper is your commander, choose a color before the game begins. The Prismatic Piper is the chosen color.

Partner (You can have two commanders if both have partner.)

At the beginning of each end step, if a player discarded a card this turn, create a 1/1 black Bird creature token with flying and "This creature can't block."

, : Each opponent discards a card. Activate only as a sorcery.

Advanced Species — Whenever a red source you control deals damage to one or more permanents and/or players, put a +1/+1 counter on The Red Terror.

Whenever a creature with a -1/-1 counter on it dies, draw a card.

: Put a -1/-1 counter on another target creature.

When The Scorpion God dies, return it to its owner's hand at the beginning of the next end step.

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 ", Sacrifice this artifact: Draw a card.")

The Space Family Goblinson has trample as long as you've rolled three or more dice this turn.

Whenever you roll a die, put a +1/+1 counter on The Space Family Goblinson.

The Tarrasque has haste and ward as long as it was cast.

Whenever The Tarrasque attacks, it fights target creature defending player controls.

Trample

The Third Doctor gets +1/+1 for each noncreature token you control.

When The Third Doctor enters the battlefield, create your choice of a Clue token, a Food token, or a Treasure token.

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.

Eminence — As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost less to cast.

Flying

Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.

Whenever one or more other permanents phase out and whenever one or more other cards are put into exile from anywhere, put a time counter on The War Doctor.

Whenever The War Doctor attacks, it deals damage equal to the number of time counters on it to any target. If a creature dealt damage this way would die this turn, exile it instead.

Flying

Whenever The Wise Mothman enters the battlefield or attacks, each player gets a rad counter.

Whenever one or more nonland cards are milled, put a +1/+1 counter on each of up to X target creatures, where X is the number of nonland cards milled this way.

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

: Scry 1, then reveal the top card of your library. If it's a land card, put it onto the battlefield tapped. Otherwise, draw a card.

Partner (You can have two commanders if both have partner.)

Haste

Whenever Thraximundar attacks, defending player sacrifices a creature.

Whenever a player sacrifices a creature, you may put a +1/+1 counter on Thraximundar.

, : Target creature gets +5/+5 until end of turn.

This spell can't be countered.

Trample

Thrun, Breaker of Silence can't be the target of nongreen spells your opponents control or abilities from nongreen sources your opponents control.

As long as it's your turn, Thrun has indestructible.

Flash

Flying

Spells you cast with mana value 5 or greater cost less to cast and can't be countered.

Flying, first strike

Whenever an Aura or Equipment you control is put into a graveyard from the battlefield, you may return that card to its owner's hand at the beginning of the next end step.

Partner with Rhoda, Geist Avenger (When this creature enters the battlefield, target player may put Rhoda into their hand from their library, then shuffle.)

Flying

At the beginning of each combat, tap up to one target creature.

Ward—Discard a card.

Whenever another nontoken Vampire you control dies, you may pay and exile it. If you do, create a 1/1 black Bat creature token with flying. It gains "When this creature deals combat damage to a player, sacrifice it and return the exiled card to the battlefield tapped."

At the beginning of each end step, if an opponent discarded a card this turn, you draw a card and you lose 1 life.

: Each opponent with no cards in hand loses 10 life.

Vigilance, reach, trample, haste

Titania, Gaea Incarnate's power and toughness are each equal to the number of lands you control.

When Titania enters the battlefield, return all land cards from your graveyard to the battlefield tapped.

: Put four +1/+1 counters on target land you control. It becomes a 0/0 Elemental creature with haste. It's still a land.

When Titania, Protector of Argoth enters the battlefield, return target land card from your graveyard to the battlefield.

Whenever a land you control is put into a graveyard from the battlefield, create a 5/3 green Elemental creature token.

First strike, protection from red

When Tivadar of Thorn enters the battlefield, destroy target Goblin.

Flying, ward

Council's dilemma — Whenever Tivit enters the battlefield or deals combat damage to a player, starting with you, each player votes for evidence or bribery. For each evidence vote, investigate. For each bribery vote, create a Treasure token.

While voting, you may vote an additional time. (The votes can be for different choices or for the same choice.)

Flash

When Tobias, Doomed Conqueror dies, for each nontoken creature you controlled that died this turn, create a 2/2 black Zombie creature token.

Creatures you control have vigilance and ": Surveil 1." (To surveil 1, look at the top card of your library. You may put that card into your graveyard.)

, Exile Tocasia, Dig Site Mentor from your graveyard: Return any number of target artifact cards with total mana value 10 or less from your graveyard to the battlefield. Activate only as a sorcery.

Protection from red

If a red source would deal damage to a player, it deals that much damage plus 1 to that player instead.

When Tolsimir, Friend to Wolves enters the battlefield, create Voja, Friend to Elves, a legendary 3/3 green and white Wolf creature token.

Whenever a Wolf enters the battlefield under your control, you gain 3 life and that creature fights up to one target creature you don't control.

When Toluz, Clever Conductor enters the battlefield, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Whenever you discard one or more cards, exile them from your graveyard.

When Toluz dies, put the cards exiled with it into their owner's hand.

Flying

Lands on the battlefield and land cards in graveyards can't be the targets of spells or abilities your opponents control.

Your opponents can't play land cards from graveyards.

If you would draw a card, look at the top three cards of your library instead. Put one of those cards into your hand and the rest on the bottom of your library in any order.

Partner with Pir, Imaginative Rascal (When this creature enters the battlefield, target player may put Pir into their hand from their library, then shuffle.)

Whenever you draw a card, put a +1/+1 counter on Toothy, Imaginary Friend.

When Toothy leaves the battlefield, draw a card for each +1/+1 counter on it.

Reach, lifelink

If another source you control would deal noncombat damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.

Whenever you cast an instant or sorcery spell, Tor Wauki the Younger deals 2 damage to any target.

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs less to cast for each creature sacrificed this way.

When Torgaar, Famine Incarnate enters the battlefield, up to one target player's life total becomes half their starting life total, rounded down.

Whenever one or more cards leave your graveyard, create a tapped 2/2 black Zombie creature token.

Partner (You can have two commanders if both have partner.)

When Torsten, Founder of Benalia enters the battlefield, reveal the top seven cards of your library. Put any number of creature and/or land cards from among them into your hand and the rest on the bottom of your library in a random order.

When Torsten dies, create seven 1/1 white Soldier creature tokens.

This spell can't be countered.

Indestructible

Toski, Bearer of Secrets attacks each combat if able.

Whenever a creature you control deals combat damage to a player, draw a card.