Commander creatures you own have "The first Dragon spell you cast each turn costs {2} less to cast."

({T}: Add {R} or {G}.) This land enters tapped unless you control two or more basic lands.

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

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

({T}: Add {G}.)

As this land enters, you may reveal a Mountain or Forest card from your hand. If you don't, this land enters tapped. {T}: Add {R} or {G}.

{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 {C}. {X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters tapped. {T}: Add {G}. {G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

({T}: Add {R}.)

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters tapped. {T}: Add {R}. {R}, {T}: You may play the exiled card without paying its mana cost if an opponent was dealt 7 or more damage this turn.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {R} or {G}.

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

{T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.

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.

{1}, {T}: Add {R}{G}.

As this artifact enters, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, it enters with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)

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

If an artifact or creature entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

{T}: Add {C}{C}.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

This spell costs {X} less to cast, where X is the greatest power among creatures you control. {T}: Add {G}{G}. You gain 2 life. Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.

As this artifact enters, choose a creature type. Creature spells of the chosen type cost {2} less to cast.

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. Whenever you cast a creature spell of the chosen type, draw a card.

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, trample Whenever a Dragon you control attacks, it gains double strike until end of turn.

When this creature dies, you may search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

Trample Whenever a source you control deals 5 or more damage to a player, draw a card.

Dragon spells you cast cost {1} less to cast.

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.

Flying Whenever Drakuseth attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets.

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.

Each spell you cast that's red or green costs {1} less to cast.

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, haste Whenever this creature attacks, you may pay {5}{R}{R}. If you do, untap all attacking creatures and after this phase, there is an additional combat phase.

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.

Flying, trample Whenever this creature deals combat damage to a player, you may collect evidence X. When you do, this creature deals X damage to each creature and planeswalker that player controls. (To collect evidence X, exile cards with total mana value X or greater from your graveyard.)

Flying, haste Whenever Klauth attacks, add X mana in any combination of colors, where X is the total power of attacking creatures. Spend this mana only to cast spells. Until end of turn, you don't lose this mana as steps and phases end.

Flying Whenever another nontoken Dragon you control enters, create a 5/5 red Dragon creature token with flying. {1}{R}: Dragons you control get +1/+0 until end of turn.

Flying Whenever a creature you control deals combat damage to a player, create that many Treasure tokens.

Flying When this creature enters, create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Ward {2} As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. If a triggered ability of another creature you control of the chosen type triggers, it triggers an additional time.

Flying Whenever this creature attacks, add {R}{R}{R}{G}{G}{G}. Until end of turn, you don't lose this mana as steps and phases end.

{T}: Add {G}. When you spend this mana to cast a Dragon creature spell, you gain 2 life.

Flying Whenever this creature or another Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control. {R}: This creature gets +1/+0 until end of turn.

Flying {2}: This creature gets +1/+0 until end of turn. {X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn.

When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Whenever you attack, you may sacrifice one or more Treasures. When you do, up to that many target creatures 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.

Trample Whenever Thrakkus attacks, double the power of each Dragon you control until end of turn.

Flying Whenever a Dragon you control becomes the target of a spell or ability an opponent controls, this creature deals 3 damage to that player.

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

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Dragon creatures you control get +3/+3.

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.

When this enchantment enters, if you control a creature with power 4 or greater, draw a card. Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Whenever a creature you control with power 4 or greater enters, draw a card.

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.)

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

As an additional cost to cast this spell, sacrifice an artifact or discard a card. Draw two cards.

Choose one — • Draw cards equal to the greatest power among non-Human creatures you control. • Non-Human creatures you control get +3/+3 until end of turn.

Choose one — • Destroy target artifact. • Destroy target enchantment. • Exile target card from a graveyard.

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