The Relentless Dragon

Legendary Creature — Dragon Avatar

Flying, hexproof from multicolored Whenever Niv-Mizzet deals combat damage to a player, it deals X damage to any target, target player draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors.

Legendary Creature — Dragon Wizard

Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. {T}: Draw a card.

Instant

Target creature becomes white until end of turn. Tap that creature. Draw a card.

Instant

Counter target spell unless its controller pays {3}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Enchantment

Sacrifice this enchantment: Return to your hand all creature cards in your graveyard that were put there from the battlefield this turn.

Sorcery

Each player who controls the most creatures investigates. Then destroy all creatures. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Creature — Spirit Avatar

Flying Attacking creatures you control get +2/+0.

Creature — Cat

{1}: This creature gains first strike until end of turn.

Creature — Human Cleric Soldier

Vigilance Plainscycling {2} ({2}, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle.)

Creature — Human Nomad Cleric

{W}, {T}: Put target Aura card from a graveyard onto the battlefield under your control attached to a creature you control.

Creature — Kor Nomad Soldier

{0}: The next 1 damage that would be dealt to this creature this turn is dealt to target creature you control instead.

Sorcery

Create a 1/1 white Kor Soldier creature token for each creature you control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Legendary Creature — Human Samurai

Vigilance Whenever a Samurai or Warrior you control attacks alone, you may cast target enchantment card from your graveyard this turn.

Artifact

({W/P} can be paid with either {W} or 2 life.) Creatures can't attack you or planeswalkers you control unless their controller pays {W/P} for each of those creatures.

Artifact

{4}, {T}: For one spell this turn, you may spend mana as though it were mana of any type to pay that spell's mana cost. (Additional costs are still paid normally.)

Creature — Human Knight

{W}{W}, {T}: Destroy target black permanent.

Kindred Sorcery — Rogue

Prowl {5}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.) Create X 1/1 black Faerie Rogue creature tokens with flying, where X is the damage dealt to your opponents this turn. If this spell's prowl cost was paid, take an extra turn after this one.

Creature — Human Cleric

{2}{W}, {T}, Sacrifice this creature: Destroy all enchantments.

Artifact

{3}, {T}: The next time a source of your choice would deal damage to you this turn, that damage is dealt to target creature of an opponent's choice instead.

Creature — Wurm

Whenever this creature attacks, destroy all other creatures.

Creature — Troll Warlock

{1}, Sacrifice another creature: Put a +1/+1 counter on target creature. Activate only as a sorcery.

Creature — Dragon

Flying When this creature dies, you may destroy target creature with mana value 3 or less.

Enchantment — Aura

Enchant land Enchanted land has "{T}: This land deals 1 damage to each creature and each player."

Instant

Destroy target creature or planeswalker that's green or white. You gain 1 life.

Legendary Creature — Merfolk Ally

Whenever you cast an instant or sorcery spell, you may put three +1/+1 counters on target land you control. If you do, that land becomes a 0/0 Elemental creature with haste that's still a land.

Creature — Beast

When this creature enters, you may return target red sorcery card from your graveyard to your hand. When this creature enters, you may return target blue instant card from your graveyard to your hand.

Artifact

{2}, {T}: Create a 0/1 colorless Pest artifact creature token.

Creature — Vampire Shaman

{3}{B}, Exile a creature card from your graveyard: Create a tapped 2/2 black Zombie creature token.

World Enchantment

As this enchantment enters, you and an opponent each choose a card name other than a basic land card name. Spells with the chosen names can't be cast and lands with the chosen names can't be played.

Instant

Choose one — • Counter target multicolored spell. • Destroy target multicolored permanent.

Enchantment

Skip your draw step. Whenever you play a card, draw a card. Your maximum hand size is two.

Creature — Eldrazi Elemental

When you cast this spell, draw two cards. Flying Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.) Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Enchantment Creature — Giant

Constellation — Whenever this creature or another enchantment you control enters, double target creature's power and toughness until end of turn.

Enchantment Creature — Beast

Trample Other creatures you control have trample.

Creature — Centaur Shaman

When this creature enters, target creature you control gets +X/+0 until end of turn, where X is your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Sorcery

Choose one — • Search your library for up to X land cards, reveal them, put them into your hand, then shuffle. • Nylea's Intervention deals twice X damage to each creature with flying.

Legendary Enchantment Creature — God

Indestructible As long as your devotion to green is less than five, Nylea isn't a creature. Creature spells you cast cost {1} less to cast. {2}{G}: Reveal the top card of your library. If it's a creature card, put it into your hand. Otherwise, you may put it into your graveyard.

Enchantment Creature — Centaur Shaman

At the beginning of combat on your turn, target enchanted creature or enchantment creature you control gets +1/+1 and gains trample until end of turn.

Legendary Artifact

Nyx Lotus enters tapped. {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

Creature — Elemental

As this creature enters, choose an opponent. This creature gets -1/-1 for each card in the chosen player's hand.

Enchantment Creature — Beast

This spell costs {X} less to cast, where X is the total mana value of noncreature enchantments you control. Trample {1}{G}, Sacrifice another enchantment: This creature gains indestructible until end of turn.

Enchantment Creature — Cyclops

Enchantment Creature — Giant

Enchantment Creature — Centaur Scout

Enchantment Creature — Minotaur

Enchantment Creature — Merfolk Soldier

Legendary Enchantment

When Oath of Kaya enters, it deals 3 damage to any target and you gain 3 life. Whenever an opponent attacks a planeswalker you control with one or more creatures, Oath of Kaya deals 2 damage to that player and you gain 2 life.

Creature — Giant Soldier

Vigilance Other creatures you control get +0/+2 and have vigilance.

Legendary Creature — Ogre Warlock

Menace Whenever Obeka deals combat damage to a player, you get that many additional upkeep steps after this phase.

Artifact

{1}{W}, {T}: You gain 5 life. {1}{U}, {T}: Draw a card, then discard a card. {1}{B}, {T}: Target creature gets -2/-2 until end of turn. {1}{R}, {T}: This artifact deals 3 damage to target player or planeswalker. {1}{G}, {T}: Target creature gets +4/+4 until end of turn.

Artifact

{6}, {T}: Return target permanent you both own and control to your hand.

Sorcery

This spell can't be countered. Destroy all artifacts, creatures, and lands. They can't be regenerated.

Enchantment

When this enchantment enters, exile another target nonland permanent. When this enchantment leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Creature — Moonfolk Wizard

Flying {2}, Return a land you control to its owner's hand: Untap target land.

Legendary Land

{T}: Add {U}. {1}: Return Oboro to its owner's hand.

Enchantment

Whenever you cast a spell, if its mana value is equal to 1 plus the number of soul counters on this enchantment, put a soul counter on this enchantment, then create a 2/2 white Spirit creature token with flying. As long as there are five or more soul counters on this enchantment, Spirits you control get +3/+3.