Return target artifact, enchantment, or legendary card from your graveyard to your hand. (Then exile this card. You may cast the creature later from exile.)

Whenever Rubblebelt Braggart attacks, if it's not suspected, you may suspect it. (A suspected creature has menace and can't block.)

Flying

Whenever Sapphire Dragon attacks or blocks, scry 2.

+1: Until end of turn, Sarkhan, the Dragonspeaker becomes a legendary 4/4 red Dragon creature with flying, indestructible, and haste. (He doesn't lose loyalty while he's not a planeswalker.)

−3: Sarkhan, the Dragonspeaker deals 4 damage to target creature.

−6: You get an emblem with "At the beginning of your draw step, draw two additional cards" and "At the beginning of your end step, discard your hand."

Sarkhan's Rage deals 5 damage to any target. If you control no Dragons, Sarkhan's Rage deals 2 damage to you.

Scorching Dragonfire deals 3 damage to target creature or planeswalker. If that creature or planeswalker would die this turn, exile it instead.

When Scrapwork Rager enters, you draw a card and you lose 1 life.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Enchant creature

Enchanted creature gets +2/+2.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flying

Spear of the Void Dragon — Whenever Shard of the Void Dragon attacks, each opponent sacrifices a nonland permanent of their choice.

Matter Absorption — Whenever an artifact is put into a graveyard from the battlefield or is put into exile from the battlefield, put two +1/+1 counters on Shard of the Void Dragon.

Flying

As long as you control four or more artifacts, Shimmer Dragon has hexproof. (It can't be the target of spells or abilities your opponents control.)

Tap two untapped artifacts you control: Draw a card.

Flying

: This creature gets +1/+0 until end of turn.

At the beginning of your upkeep and whenever you cast a red spell, put a charge counter on Shrine of Burning Rage.

, , Sacrifice Shrine of Burning Rage: It deals damage equal to the number of charge counters on it to any target.

Flying

When Siege Dragon enters, destroy all Walls your opponents control.

Whenever Siege Dragon attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.

+1: Until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays 2 life for each of those creatures.

−3: Search your library for a Dragon card, reveal it, put it into your hand, then shuffle.

−7: Destroy all non-Dragon creatures.

Sivitri, Dragon Master can be your commander.

Whenever Skanos Dragonheart attacks, it gets +X/+X until end of turn, where X is the greatest power among other Dragons you control and Dragon cards in your graveyard.

Choose a Background (You can have a Background as a second commander.)

Flying

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

: Skithiryx, the Blight Dragon gains haste until end of turn.

: Regenerate Skithiryx.

Whenever Snapping Thragg deals combat damage to a player, you may have it deal 3 damage to target creature that player controls.

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

Flying

Whenever Spellbound Dragon attacks, draw a card, then discard a card. Spellbound Dragon gets +X/+0 until end of turn, where X is the discarded card's mana value.

Flying, haste

Whenever you cast a noncreature spell, put a +1/+1 counter on Sprite Dragon.

Flying, haste, protection from white

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

When Stormbreath Dragon becomes monstrous, it deals damage to each opponent equal to the number of cards in that player's hand.

Trample

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

Destroy target creature with toughness 4 or greater.

Creatures you control get +2/+2 until end of turn.

Reinforce X— (, Discard this card: Put X +1/+1 counters on target creature.)

Enchant creature

Enchanted creature gets +3/+0 as long as it's attacking. Otherwise, it gets -2/-1.

Equipped creature gets +5/+5.

, Exile Tatsumasa, the Dragon's Fang: Create a 5/5 blue Dragon Spirit creature token with flying. Return Tatsumasa to the battlefield under its owner's control when that token dies.

Equip

Flying; trample; rampage 4 <I>(Whenever this creature becomes blocked, it gets +4/+4 until end of turn for each creature blocking it beyond the first.)</I>

Target creature gains double strike until end of turn.

Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.)

I — The Elder Dragon War deals 2 damage to each creature and each opponent.

II — Discard any number of cards, then draw that many cards.

III — Create a 4/4 red Dragon creature token with flying.

Eminence — As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost less to cast.

Flying

Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.

When Thragtusk enters, you gain 5 life.

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

Flying

When Thunder Dragon enters, it deals 3 damage to each creature without flying.

Flying

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

Eternalize (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Dragon with no mana cost. Eternalize only as a sorcery.)

: Add .

, : You gain 1 life for each colorless creature you control.

For each player, you choose from among the permanents that player controls an artifact, a creature, an enchantment, and a planeswalker. Then each player sacrifices all other nonland permanents they control.

Target creature gets -3/-3 until end of turn.

Hellbent — That creature gets -13/-13 until end of turn instead if you have no cards in hand.

, Sacrifice Tragic Poet: Return target enchantment card from your graveyard to your hand.

Trigon of Rage enters with three charge counters on it.

, : Put a charge counter on Trigon of Rage.

, , Remove a charge counter from Trigon of Rage: Target creature gets +3/+0 until end of turn.

Flying

Menace (This creature can't be blocked except by two or more creatures.)

Two-Headed Dragon can block an additional creature each combat.

: Two-Headed Dragon gets +2/+0 until end of turn.

+2: Ugin, the Spirit Dragon deals 3 damage to any target.

−X: Exile each permanent with mana value X or less that's one or more colors.

−10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Enchant creature

Enchanted creature gets +2/+2 and can't block.

When Undying Rage is put into a graveyard from the battlefield, return Undying Rage to its owner's hand.

2 — : Switch this creature's power and toughness until end of turn.

4 — Whenever this creature attacks, it gets +5/+5 until end of turn.

2 — 3/2

3 — 2/7

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

This spell can't be countered.

Urza's Rage deals 3 damage to any target. If this spell was kicked, instead it deals 10 damage to that permanent or player and the damage can't be prevented.

Deathtouch

Boast — : Target player searches their library for a card, then shuffles and puts that card on top. (Activate only if this creature attacked this turn and only once each turn.)

Flying

Whenever Venomous Dragonfly blocks or becomes blocked by a creature, destroy that creature at end of combat.

Flying

: Viashivan Dragon gets +1/+0 until end of turn.

: Viashivan Dragon gets +0/+1 until end of turn.

Whenever a source you control deals noncombat damage to an opponent, you may exile that many cards from the top of your library. You may play those cards this turn.

Vivid Crag enters tapped with two charge counters on it.

: Add .

, Remove a charge counter from Vivid Crag: Add one mana of any color.

Flying

Devour 1 (As this enters, you may sacrifice any number of creatures. This creature enters with that many +1/+1 counters on it.)

When Voracious Dragon enters, it deals damage to any target equal to twice the number of Goblins it devoured.

Create a 6/6 black and red Dragon creature token with flying, menace, and "Whenever this creature deals combat damage to a player, gain control of target artifact that player controls."

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying

As long as Wardscale Dragon is attacking, defending player can't cast spells.