Dragon Tyrant

Flying, trample
Double strike (This creature deals both first-strike and regular combat damage.)
At the beginning of your upkeep, sacrifice Dragon Tyrant unless you pay {R}{R}{R}{R}.
{R}: Dragon Tyrant gets +1/+0 until end of turn.

Lotus Petal

{T}, Sacrifice Lotus Petal: Add one mana of any color.

Savage Beating

Cast this spell only during your turn and only during combat.
Choose one —
• Creatures you control gain double strike until end of turn.
• Untap all creatures you control. After this phase, there is an additional combat phase.
Entwine {1}{R} (Choose both if you pay the entwine cost.)

Aether Flash

Whenever a creature enters the battlefield, Aether Flash deals 2 damage to it.

Fervor

Creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

Covetous Dragon

Flying
When you control no artifacts, sacrifice Covetous Dragon.

Ruby Medallion

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

Rorix Bladewing

Forgotten Cave

Forgotten Cave enters the battlefield tapped.
{T}: Add {R}.
Cycling {R} ({R}, Discard this card: Draw a card.)

Dragonspeaker Shaman

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

Blood Moon

Looming Spires

Looming Spires enters the battlefield tapped.
When Looming Spires enters the battlefield, target creature gets +1/+1 and gains first strike until end of turn.
{T}: Add {R}.

Mountain

Fork

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Relentless Assault

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Mana Flare

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Helm of Awakening

Blind Fury

All creatures lose trample until end of turn. If a creature would deal combat damage to a creature this turn, it deals double that damage to that creature instead.

Dragonmaster Outcast

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

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Volcanic Dragon

Dragon Whelp

Flying
{R}: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step.

Shivan Dragon

Flying (This creature can't be blocked except by creatures with flying or reach.)
{R}: Shivan Dragon gets +1/+0 until end of turn.