Name: Trial and Error Cost: RR Type: Elemental Instant -- Fire Rules Text: Whenever Trial and Error is countered or fizzles, you may copy it and choose new targets for the copy. Trial and Error deals 3 damage to any target. Set/Rarity: Mystery Booster Playtest Cards 2019 rare, Mystery Booster Playtest Cards 2021 rare Price: $0.18

Name: Truefire Captain Cost: RRWW Type: Creature -- Human Knight Pow/Tgh: 4/3 Rules Text: Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Whenever this creature is dealt damage, it deals that much damage to target player. Set/Rarity: Guilds of Ravnica uncommon, Ravnica Remastered uncommon Price: $0.17

Name: Truefire Paladin Cost: RW Type: Creature -- Human Knight Pow/Tgh: 2/2 Rules Text: Vigilance {R}{W}: This creature gets +2/+0 until end of turn. {R}{W}: This creature gains first strike until end of turn. Set/Rarity: Gatecrash uncommon, Duel Decks: Heroes vs. Monsters uncommon Price: $0.05

Name: Try-My-Deck Elemental Cost: 3W Type: Creature -- Elemental Pow/Tgh: 4/3 Rules Text: Flying Commander spells you cast have demonstrate. (When you cast a commander spell, you may copy it. If you do, choose an opponent to also copy it. The copies become tokens.) The "legend rule" doesn't apply to commanders you control. Set/Rarity: Unknown Event rare Price: ???

Name: Tumbleweed Rising Cost: 1G Type: Sorcery Rules Text: Create an X/X green Elemental creature token, where X is the greatest power among creatures you control. Plot {2}{G} (You may pay {2}{G} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.) Set/Rarity: Outlaws of Thunder Junction common Price: $0.11

Name: Tundra Tank Cost: 2B Type: Artifact -- Vehicle Pow/Tgh: 4/4 Rules Text: Firebending 1 (Whenever this creature attacks, add {R}. This mana lasts until end of combat.) When this Vehicle enters, target creature you control gains indestructible until end of turn. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.) Set/Rarity: Avatar: The Last Airbender uncommon Price: $0.16

Name: Tunnel Ignus Cost: 1R Type: Creature -- Elemental Pow/Tgh: 2/1 Rules Text: Whenever a land enters under an opponent's control, if that player had another land enter the battlefield under their control this turn, this creature deals 3 damage to that player. Set/Rarity: Scars of Mirrodin rare Price: $0.50

Name: Tuskeri Firewalker Cost: 2R Type: Creature -- Human Berserker Pow/Tgh: 3/2 Rules Text: Boast -- {1}: Exile the top card of your library. You may play that card this turn. (Activate only if this creature attacked this turn and only once each turn.) Set/Rarity: Kaldheim common Price: $0.04

Name: Twinflame Travelers Cost: 2UR Type: Creature -- Elemental Sorcerer Pow/Tgh: 3/3 Rules Text: Flying If a triggered ability of another Elemental you control triggers, it triggers an additional time. Set/Rarity: Lorwyn Eclipsed uncommon Price: $0.30

Name: Tyrant of Discord Cost: 4RRR Type: Creature -- Elemental Pow/Tgh: 7/7 Rules Text: When this creature enters, target opponent chooses a permanent they control at random and sacrifices it. If a nonland permanent is sacrificed this way, repeat this process. Set/Rarity: Avacyn Restored rare Price: $2.46

Name: Umbra Stalker Cost: 4BBB Type: Creature -- Elemental Pow/Tgh: */* Rules Text: Chroma -- Umbra Stalker's power and toughness are each equal to the number of black mana symbols in the mana costs of cards in your graveyard. Set/Rarity: Eventide rare Price: $0.42

Name: Uncle Iroh Cost: 1{R/G}{R/G} Type: Legendary Creature -- Human Noble Ally Pow/Tgh: 4/2 Rules Text: Firebending 1 (Whenever this creature attacks, add {R}. This mana lasts until end of combat.) Lesson spells you cast cost {1} less to cast. Set/Rarity: Avatar: The Last Airbender uncommon Price: $0.23

Name: Undergrowth Champion Cost: 1GG Type: Creature -- Elemental Pow/Tgh: 2/2 Rules Text: If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from this creature. Landfall -- Whenever a land you control enters, put a +1/+1 counter on this creature. Set/Rarity: Battle for Zendikar Promos mythic, Battle for Zendikar mythic, Foundations Jumpstart mythic Price: $0.49

Name: Underworld Fires Cost: 1R Type: Sorcery Rules Text: Underworld Fires deals 1 damage to each creature and each planeswalker. If a permanent dealt damage this way would die this turn, exile it instead. Set/Rarity: Theros Beyond Death uncommon Price: $0.14

Name: Underworld Rage-Hound Cost: 1R Type: Creature -- Elemental Dog Pow/Tgh: 3/1 Rules Text: This creature attacks each combat if able. Escape--{3}{R}, Exile three other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.) This creature escapes with a +1/+1 counter on it. Set/Rarity: Theros Beyond Death common Price: $0.05

Name: Unfriendly Fire Cost: 4R Type: Instant Rules Text: Unfriendly Fire deals 4 damage to any target. Set/Rarity: Ixalan common Price: $0.10

Name: Updraft Elemental Cost: 2U Type: Creature -- Elemental Pow/Tgh: 1/4 Rules Text: Flying Set/Rarity: Dragons of Tarkir common Price: $0.03

Name: Ur-Drago Cost: 3UUBB Type: Legendary Creature -- Elemental Pow/Tgh: 4/4 Rules Text: First strike Creatures with swampwalk can be blocked as though they didn't have swampwalk. Set/Rarity: Legends rare Price: $17.07

Name: Urn of Godfire Cost: 1 Type: Artifact Rules Text: {2}: Add one mana of any color. {6}, {T}, Sacrifice this artifact: Destroy target creature or enchantment. Set/Rarity: March of the Machine common Price: $0.06

Name: Vadrok, Apex of Thunder Cost: URW Type: Legendary Creature -- Elemental Dinosaur Cat Pow/Tgh: 3/3 Rules Text: Mutate {1}{W/U}{R}{R} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Flying, first strike Whenever this creature mutates, you may cast target noncreature card with mana value 3 or less from your graveyard without paying its mana cost. Set/Rarity: Magic Online Promos mythic, Ikoria: Lair of Behemoths Promos mythic, Ikoria: Lair of Behemoths mythic Price: $0.54