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

Remove three spore counters from Thorn Thallid: It deals 1 damage to any target.

Sliver creatures you control have "Whenever this creature attacks, it deals 1 damage to any target."

When Thornmantle Striker enters the battlefield, choose one —

• Remove X counters from target permanent, where X is the number of Elves you control.

• Target creature an opponent controls gets -X/-X until end of turn, where X is the number of Elves you control.

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

When Thornscape Battlemage enters the battlefield, if it was kicked with its kicker, it deals 2 damage to any target.

When Thornscape Battlemage enters the battlefield, if it was kicked with its kicker, destroy target artifact.

, : Thornscape Master deals 2 damage to target creature.

, : Target creature gains protection from the color of your choice until end of turn.

Whenever you cast a Treefolk spell, you may have target creature get +3/-3 until end of turn.

Reach, deathtouch

Flying

Your maximum hand size is reduced by four.

Trample

When Thought Gorger enters the battlefield, put a +1/+1 counter on it for each card in your hand. If you do, discard your hand.

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

Affinity for artifacts

Flying

When Thought Monitor enters the battlefield, draw two cards.

Flash

Thought Sponge enters the battlefield with a number of +1/+1 counters on it equal to the greatest number of cards an opponent has drawn this turn.

When Thought Sponge dies, draw cards equal to its power.

Flying

At the beginning of your upkeep, if a player controls more Wizards than each other player, the player who controls the most Wizards gains control of Thoughtbound Primoc.

( represents colorless mana.)

When Thought-Knot Seer enters the battlefield, target opponent reveals their hand. You choose a nonland card from it and exile that card.

When Thought-Knot Seer leaves the battlefield, target opponent draws a card.

Constellation — Whenever Thoughtrender Lamia or another enchantment enters the battlefield under your control, each opponent discards a card.

Whenever Thousand Moons Crackshot attacks, you may pay . When you do, tap target creature.

Flying

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Thousand Winds is turned face up, return all other tapped creatures to their owners' hands.

Soulshift 7 (When this creature dies, you may return target Spirit card with mana value 7 or less from your graveyard to your hand.)

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 target creature card from a graveyard.

Trample

Vigilance

Whenever another creature you control dies, you may transform Thraben Sentry.

Vigilance

When Thragtusk enters the battlefield, you gain 5 life.

When Thragtusk leaves the battlefield, create a 3/3 green Beast creature token.

As long as Thran Golem is enchanted, it gets +2/+2 and has flying, first strike, and trample.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Thran War Machine attacks each combat if able.

Whenever Thrasher Brute or another Warrior enters the battlefield under your team's control, target opponent loses 1 life and you gain 1 life.

Trample

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

Whenever Thrashing Mudspawn is dealt damage, you lose that much life.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

: 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.

Flying

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

Whenever Threefold Thunderhulk enters the battlefield 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.

Flash

Flying

When Threnody Singer enters the battlefield, target creature an opponent controls gets -X/-0 until end of turn, where X is your devotion to blue. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

Thresher Lizard gets +1/+2 as long as you have one or fewer cards in hand.

Squad—, Discard a card. (As an additional cost to cast this spell, you may pay its squad cost any number of times. When this creature enters the battlefield, create that many tokens that are copies of it.)

When Thrill-Kill Disciple dies, create a Junk token.

When Thriving Grubs enters the battlefield, you get (two energy counters).

Whenever Thriving Grubs attacks, you may pay . If you do, put a +1/+1 counter on it.

When Thriving Rats enters the battlefield, you get (two energy counters).

Whenever Thriving Rats attacks, you may pay . If you do, put a +1/+1 counter on it.

Flying

When Thriving Skyclaw enters the battlefield, you get (three energy counters).

Whenever Thriving Skyclaw attacks, you may pay . If you do, put a +1/+1 counter on it.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Throat Slitter deals combat damage to a player, destroy target nonblack creature that player controls.

Devour X, where X is the number of creatures devoured this way (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with X +1/+1 counters on it for each of those creatures.)

Distribute two +1/+1 counters among one or two target creatures. (Then exile this card. You may cast the creature later from exile.)

Thrull creatures get +1/+1.

: Gain control of target Thrull for as long as you control Thrull Champion.

, Sacrifice Thrull Surgeon: Look at target player's hand and choose a card from it. That player discards that card. Activate only as a sorcery.

Flying

Whenever Thrummingbird deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

This spell can't be countered.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

: Regenerate Thrun, the Last Troll.

Trample

Tribute 3 (As this creature enters the battlefield, an opponent of your choice may put three +1/+1 counters on it.)

When Thunder Brute enters the battlefield, if tribute wasn't paid, it gains haste until end of turn.

Flying

Whenever you cast your second spell each turn, put a +1/+1 counter on Thunder Drake.

Defender (This creature can't attack.)

Flying

: Thunder Wall gets +1/+1 until end of turn.