At the beginning of each player's upkeep, that player chooses artifact, creature, land, or non-Aura enchantment. All nontoken permanents of that type phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

Brave Heart — Whenever you attack, target attacking historic creature gets +1/+1 and gains indestructible until end of turn. (Artifacts, legendaries, and Sagas are historic.)

Doctor's companion (You can have two commanders if the other is the Doctor.)

When Telepathic Spies enters the battlefield, look at target opponent's hand.

Whenever Tel-Jilad Wolf becomes blocked by an artifact creature, Tel-Jilad Wolf gets +3/+3 until end of turn.

Sliver creatures you control have "Whenever this creature deals combat damage to a player, put a +1/+1 counter on it."

Flying

Tempest Djinn gets +1/+0 for each basic Island you control.

Destroy all enchantments.

: You gain 1 life. Activate only during your turn, before attackers are declared.

Return target creature to its owner's hand. If you control an artifact, draw a card.

When Temporary Lockdown enters the battlefield, exile each nonland permanent with mana value 2 or less until Temporary Lockdown leaves the battlefield.

, : Tempting Licid loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.

All creatures able to block enchanted creature do so.

Creatures you control have haste.

Whenever a creature with power 4 or greater enters the battlefield under your control, you may draw a card.

Choose one —

• Target creature you control gets +1/+1 until end of turn. It fights target creature you don't control.

• Counter target spell unless its controller pays .

• Creatures with power 3 or less can't block this turn.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

When Tenacious Tomeseeker enters the battlefield, if it was bargained, return target instant or sorcery card from your graveyard to your hand.

Equipped creature gets +1/+1. As long as it's legendary, it gets an additional +2/+2. As long as it's red, it has trample.

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

All lands have indestructible.

Trample

Terravore's power and toughness are each equal to the number of land cards in all graveyards.

Trample

Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Territorial Scythecat.

Heroic — Whenever you cast a spell that targets Tethmos High Priest, return target creature card with mana value 2 or less from your graveyard to the battlefield.

Whenever Tetsuo, Imperial Champion attacks, if it's equipped, choose one —

• Tetsuo deals damage equal to the highest mana value among Equipment attached to it to any target.

• You may cast an instant or sorcery spell from your hand with mana value less than or equal to the highest mana value among Equipment attached to Tetsuo without paying its mana cost.

When Teyo, Geometric Tactician enters the battlefield, create a 0/4 white Wall creature token with defender and flying.

+1: You and target opponent each draw a card.

−2: Choose left or right. Until your next turn, each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent.

When Teyo's Lightshield enters the battlefield, put a +1/+1 counter on target creature you control.

Sacrifice three white creatures: Exile target creature.

Whenever another black creature you control dies, create a 1/1 white Spirit creature token with flying.

As long as you control a Tezzeret planeswalker, Tezzeret's Strider has menace. (It can't be blocked except by two or more creatures.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Thada Adel, Acquisitor deals combat damage to a player, search that player's library for an artifact card and exile it. Then that player shuffles. Until end of turn, you may play that card.

Shadow (This creature can block or be blocked by only creatures with shadow.)

: Put Thalakos Mistfolk on top of its owner's library.

First strike

Creatures and nonbasic lands your opponents control enter the battlefield tapped.

At the beginning of your upkeep, put a spore counter on Thallid Devourer.

Remove three spore counters from Thallid Devourer: Create a 1/1 green Saproling creature token.

Sacrifice a Saproling: Thallid Devourer gets +1/+2 until end of turn.

Indestructible

As long as your devotion to blue is less than five, Thassa isn't a creature. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

At the beginning of your upkeep, scry 1.

: Target creature you control can't be blocked this turn.

Sacrifice a land: Thaumatog gets +1/+1 until end of turn.

Sacrifice an enchantment: Thaumatog gets +1/+1 until end of turn.

Double team

When Thayan Evokers enters the battlefield, conjure a card named Lightning Bolt into your hand, then discard a card.

Whenever you conjure one or more cards, put a +1/+1 counter on Thayan Evokers.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create a 2/2 blue Shapeshifter creature token with changeling.

II — Any number of target Shapeshifter creatures you control have base power and toughness 4/4.

III — Choose up to one target creature or planeswalker. Each creature with power 4 or greater you control deals damage equal to its power to that permanent.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create a 2/3 red Demon Berserker creature token with menace.

II — Whenever a Berserker attacks this turn, you draw a card and you lose 1 life.

III — Add for each Berserker you control. Until end of turn, you don't lose this mana as steps and phases end.

At the beginning of your end step, if you lost 2 or more life this turn, create a 2/2 black Zombie creature token.

, Exile The Book of Vile Darkness and artifacts you control named Eye of Vecna and Hand of Vecna: Create Vecna, a legendary 8/8 black Zombie God creature token with indestructible and all triggered abilities of the exiled cards.

Target creature gets +3/+0 and gains first strike until end of turn. Investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

(As this Saga enters and after your draw step, add a lore counter.)

I, II — You gain 2 life. Look at the top three cards of your library. Exile one of them face down with a hatching counter on it, then put the rest on the bottom of your library in any order.

III — Exile this Saga, then return it to the battlefield transformed under your control.

, Sacrifice another creature: The Ever-Changing 'Dane becomes a copy of the sacrificed creature, except it has this ability.

(As this Saga enters and after your draw step, add a lore counter.)

I — Exile target creature an opponent controls with mana value 4 or greater.

II — Each player gains control of all permanents they own.

III — Exile this Saga, then return it to the battlefield transformed under your control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — The First Eruption deals 1 damage to each creature without flying.

II — Add .

III — Sacrifice a Mountain. If you do, The First Eruption deals 3 damage to each creature.

At the beginning of each end step, if you gained 3 or more life this turn, draw a card.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create a 3/3 green Beast creature token.

II — You may sacrifice a creature. If you do, search your library for a creature or basic land card, reveal it, put it into your hand, then shuffle.

III — Up to two target creatures each get +2/+2 and gain trample until end of turn.

Whenever you cast a multicolored spell, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

, : Look at the top X cards of your library. Put up to two of them into your hand and the rest on the bottom of your library in a random order.

Haste

Into the TARDIS — Whenever The Ninth Doctor becomes untapped during your untap step, you get an additional upkeep step after this step.

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.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create a 1/1 blue Bird creature token with flying. You gain 2 life.

II — Whenever one or more creatures you control with flying deal combat damage to a player this turn, look at that player's hand and draw a card.

III — You may put a card you own from outside the game on top of your library.

(As this Saga enters and after your draw step, add a lore counter.)

I — Search your library for a basic Plains card, reveal it, put it into your hand, then shuffle.

II — You may discard a card. When you do, return target permanent card with mana value 2 or less from your graveyard to the battlefield tapped.

III — Exile this Saga, then return it to the battlefield transformed under your control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Create a 2/2 green Alien Salamander creature token with islandwalk. (It can't be blocked as long as defending player controls an Island.)

III — Until end of turn, whenever a Salamander deals combat damage to a player, it deals that much damage to target creature that player controls.

, , Exile The Stasis Coffin: You gain protection from everything until your next turn.

At the beginning of your upkeep, secretly choose a number between 1 and 5 that hasn't been chosen. If you do, an opponent guesses which number you chose, then you reveal the number you chose. If they guessed wrong, they lose life equal to the number they guessed and you draw a card. If they guessed right, sacrifice The Toymaker's Trap.

Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.)

I — Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

II — Create a 1/1 green Saproling creature token.

III — Domain — Target creature you control gets +X/+X and gains trample until end of turn, where X is the number of basic land types among lands you control.