Sacrifice a creature: Add {C}{C}.

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

Whenever a Dragon you control enters, put a gold counter on this artifact. {T}, Remove a gold counter from this artifact: Draw a card. {T}: Add one mana of any color.

Each Dragon you control enters with an additional +1/+1 counter on it. {T}: Add one mana of any color.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

{T}: Add one mana of any color. Activate only if you control a Dragon.

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. {T}: Add one mana of any color.

Flying Whenever this creature deals combat damage to a player, roll a d20. When you do, put X +1/+1 counters on each of up to two target creatures, where X is the result.

Flying Whenever this creature deals combat damage to a player, roll a d20. You create a number of Treasure tokens equal to the result.

Flying Whenever this creature deals combat damage to a player, roll a d20. You create a number of 1/1 blue Faerie Dragon creature tokens with flying equal to the result.

Flying Whenever this creature deals combat damage to a player, it deals that much damage to each creature that player controls.

Flying When this creature enters, it deals 5 damage to target opponent unless that player sacrifices a creature of their choice.

At the beginning of your upkeep, if you control six or more lands, create a 5/5 red Dragon creature token with flying.

Dragon spells you cast cost {2} less to cast.

This spell costs {X} less to cast, where X is the total mana value of Dragons you control. Flying, trample {2}{G}, Sacrifice a land: Return this card from your graveyard to your hand.

Flying Whenever this creature attacks, you may pay {X}{R}. If you do, it deals X damage to any target.

Bloodthirst 6 (If an opponent was dealt damage this turn, this creature enters with six +1/+1 counters on it.) Flying

Flying, haste Whenever this creature attacks or becomes the target of a spell, create a Treasure token. Treasures you control have "{T}, Sacrifice this artifact: Add two mana of any one color."

Flying {R}: This creature gets +1/+0 until end of turn.

Flying, trample Whenever Hellkite Tyrant deals combat damage to a player, gain control of all artifacts that player controls. At the beginning of your upkeep, if you control twenty or more artifacts, you win the game.

Menace Pack tactics — Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, you may put a Dragon creature card from your hand onto the battlefield tapped and attacking.

Flying {1}{R}: This creature gets +1/+0 until end of turn. Whenever this creature deals combat damage to a player, you may have it deal that much damage to target creature that player controls.

Flying Landfall — Whenever a land you control enters, create a 0/2 red Dragon Egg creature token with defender and "When this token dies, create a 2/2 red Dragon creature token with flying and '{R}: This token gets +1/+0 until end of turn.'"

Other Dinosaurs you control have haste. When this creature enters, create two 0/1 green Dinosaur Egg creature tokens. At the beginning of combat on your turn, if you control one or more Eggs, sacrifice an Egg, then create a 3/3 green Dinosaur creature token.

Flying Whenever this creature attacks, you may sacrifice another creature. If you do, this creature gains double strike until end of turn.

Flying Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.) Whenever this creature attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures. After this phase, there is an additional combat phase.

Flying When this creature enters, destroy all Walls your opponents control. Whenever this creature attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.

Flying When this creature enters, you become the monarch. At the beginning of your upkeep, if you're the monarch, create a 5/5 red Dragon creature token with flying.

Flying When this creature enters, it deals damage to any target equal to the number of Mountains you control.

Flying Other Dragons you control get +1/+1. Storm (When you cast this spell, copy it for each spell cast before it this turn. Copies become tokens.)

Flying Double strike (This creature deals both first-strike and regular combat damage.) When this creature enters, creatures you control gain double strike until end of turn.

Flying Spells your opponents cast that target this creature cost an additional 3 life to cast. Whenever another creature you control enters, this creature deals damage equal to that creature's power to any target.

Flying When this creature enters, it deals 3 damage to each creature without flying.

Flying If a source you control would deal damage to an opponent or a permanent an opponent controls, it deals double that damage instead.

Flying, haste Lieutenant — As long as you control your commander, this creature gets +2/+2 and has "Whenever this creature attacks, it deals 7 damage to target creature defending player controls."

Flying Whenever a Dragon you control attacks, create a 6/6 red Dragon creature token with flying.

Flying As long as this creature is attacking, defending player can't cast spells.

When this enchantment enters, exile cards from the top of your library until you exile a nonland card. You may cast it without paying its mana cost if that spell's mana value is 8 or less. If you don't, put that card into your hand. When a Dragon you control enters, return this enchantment to its owner's hand.

Dragon creatures you control get +3/+3.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.

You may cast Dragon spells without paying their mana costs.

Commander creatures you own have "At the beginning of your end step, if a source you controlled dealt 5 or more damage this turn, create a 4/4 red Dragon creature token with flying."

Whenever a creature you control with flying enters, it gains haste until end of turn. Whenever a Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control.

Whenever a creature you control with power 3 or greater enters, draw a card.

When this enchantment enters, search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. When a Dragon you control enters, return this enchantment to its owner's hand.

{0}: Remove target attacking creature you control from combat and untap it. (If you activate during end of combat, the creature will untap after it deals combat damage.)

Creature spells you control can't be countered. Nontoken creatures you control have riot. (They enter with your choice of a +1/+1 counter or haste.)

Parade! — At the beginning of combat on your turn, choose creatures you control one at a time until each creature you control has been chosen. Each of those creatures gets +1/+1 until end of turn for each creature chosen before it. (Places everyone! The first creature in line gets +0/+0.)

Choose one — • Boros Charm deals 4 damage to target player or planeswalker. • Permanents you control gain indestructible until end of turn. • Target creature gains double strike until end of turn.

Prevent all combat damage that would be dealt to you this turn. Populate. (Create a token that's a copy of a creature token you control.)

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Populate. Creatures you control gain indestructible until end of turn. (To populate, create a token that's a copy of a creature token you control.)

Search your library for a Dragon creature card, reveal it, put it into your hand, then shuffle.

Destroy target artifact or enchantment, then populate. (Create a token that's a copy of a creature token you control.)

This land enters tapped. When this land enters, it deals 1 damage to target opponent. {T}: Add {R} or {W}.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {G} or {W}.

This land enters tapped unless you have two or more opponents. {T}: Add {G} or {W}.

This land enters tapped. When this land enters, it deals 1 damage to target opponent. {T}: Add {R} or {G}.

As this land enters, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

{T}: Add one mana of any color in your commander's color identity.

This land enters tapped. When this land enters, it deals 1 damage to target opponent. {T}: Add {G} or {W}.

{T}: Add {C}. {1}, {T}: Put a storage counter on this land. {T}, Remove X storage counters from this land: Add X mana in any combination of colors. Spend this mana only to cast Dragon spells or activate abilities of Dragons.

This land enters tapped unless you control a Swamp or a Mountain. {T}: Add {W}. {2}{W}, {T}: Whenever you attack this turn, create two 1/1 red Warrior creature tokens that are tapped and attacking. Sacrifice them at the beginning of the next end step.

({T}: Add {G}.)

{T}: Add {C}. {2}, {T}, Sacrifice a token: Draw a card. {3}, {T}, Pay 1 life: Create a 1/1 blue Fish creature token. {4}, {T}: Create a Treasure token.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {G} or {W}.

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Dragon creature spell. {2}, {T}, Sacrifice this land: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.

{T}: Add {G}. {T}: Add {W}. Activate only if you control a Forest or a Plains.

This land enters tapped unless you control two or fewer other lands. {T}: Add {R} or {W}.

({T}: Add {R}, {G}, or {W}.) This land enters tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

This land enters tapped. {T}: Add {R}, {G}, or {W}.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {R} or {G}.

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Dragon spell or an Omen spell. {4}, {T}, Sacrifice this land: Search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

({T}: Add {R}.)

When this land enters, sacrifice it unless you return a non-Lair land you control to its owner's hand. {T}: Add {R}, {G}, or {W}.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {R} or {G}.

This land enters tapped unless you have two or more opponents. {T}: Add {R} or {W}.

This land enters tapped unless you have two or more opponents. {T}: Add {R} or {G}.

{T}: Add {W}. {T}: Add {R}. Activate only if you control a Mountain or a Plains.

{T}: Add {R}. {T}: Add {G}. Activate only if you control a Mountain or a Forest.

As Three Tree City enters, choose a creature type. {T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to the number of creatures you control of the chosen type.

This land enters tapped. As it enters, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

This land enters tapped. As it enters, choose a color other than green. {T}: Add {G} or one mana of the chosen color.

This land enters tapped. As it enters, choose a color other than white. {T}: Add {W} or one mana of the chosen color.

This land enters tapped. As it enters, choose a color. {T}: Add one mana of the chosen color.

This land enters tapped with two charge counters on it. {T}: Add {R}. {T}, Remove a charge counter from this land: Add one mana of any color.

This land enters tapped with two charge counters on it. {T}: Add {G}. {T}, Remove a charge counter from this land: Add one mana of any color.

This land enters tapped with two charge counters on it. {T}: Add {W}. {T}, Remove a charge counter from this land: Add one mana of any color.

Return target card from your graveyard to your hand.

At the beginning of combat on your turn, create a token that's a copy of equipped creature, except the token isn't legendary. That token gains haste. Equip {5}

Whenever a nontoken creature you control with power 4 or greater enters, populate. (Create a token that's a copy of a creature token you control.)

Destroy target land. Star of Extinction deals 20 damage to each creature and each planeswalker.